1.!
!     (a)!   (i) Work out the size of the angle marked y.
                                                                                                         .........................⁰
!     !      (ii) Give a reason for your answer.
!     !      ......................................................................................................................
!     !      ......................................................................................................................
                                                                                                                               (2)
!
!     (b)!   (i) Work out the size of the angle marked w.
                                                                                                         .........................⁰
!     !      (ii) Give a reason for your answer.
!     !      ......................................................................................................................
!     !      ......................................................................................................................
                                                                                                                               (2)
!
!     (c)!   (i) Work out the size of the angle marked p.
                                                                                                         .........................⁰
!     !      (ii) Give a reason for your answer.
!     !      ......................................................................................................................
!     !      ......................................................................................................................
                                                                                                                               (2)
2.!   Shown below is a quadrilateral.
!
!     Work out the size of the angle marked x.
                                                                                                         .........................⁰
                                                                                                                               (2)
3.!   Shown is a right angled triangle.
!     Work out the size of angle y.
                                                                                                        .........................⁰
                                                                                                                              (2)
4.!
!     (a) Work out the size of the angle marked x.
                                                                                                        .........................⁰
!     (b) Give a reason for your answer.
!     !     ......................................................................................................................
!     !     ......................................................................................................................
                                                                                                                              (2)
5.!
!     Work out the size of x.
                                      .........................⁰
                                                            (2)
6.!
!     Work out the size of angle x.
                                      .........................⁰
                                                            (2)
7.!   Shown below is a quadrilateral.
!     Work out the size of angle y.
                                             .........................⁰
                                                                   (2)
8.!
!     (a)!   Work out the size of angle a.
                                             .........................⁰
                                                                   (1)
!     (b)!   Work out the size of angle b.
                                             .........................⁰
                                                                   (1)
9.
!      The diagram above shows a parallelogram.
!      (a)!   Work out the size of the angle marked x.
                                                         .........................⁰
!      (b)!   Work out the size of the angle marked y.
                                                         .........................⁰
                                                                               (2)
10.!     Shown below is an isosceles triangle.
!
!      Work out the size of the angle marked y.
                                                         .........................⁰
                                                                               (2)
11.!     Shown below is an isosceles triangle.
!
!      Work out the size of the angle marked w.
                                                  .........................⁰
                                                                        (2)
12.
!      Work out the size of the angle marked x.
                                                  .........................⁰
                                                                        (3)
13.!
!      Work out the size of angle y.
                                       .........................⁰
                                                             (3)
14.
!      (a) Calculate angle x.
                                       .........................⁰
                                                             (1)
!      (b) Calculate angle w.
                                       .........................⁰
                                                             (1)
15.
!     Triangle EFG is an isosceles triangle.
!     Lines FGH and EGI are straight lines.
!     Angle EGF is 104⁰.
!     (a) Find the size of angle HGI.
                                               .........................⁰
                                                                     (1)
!     (b) Find the size of angle EFG.
                                               .........................⁰
                                                                     (2)
16.!   Below are 3 straight lines.
!
!      Find the size of angle y.
                                             .........................
                                                                  (3)
17.!   Bernard says AC is a straight line.
!      Is he correct?
!      Explain your answer.
                                                                 (2)
18.!   An isosceles triangle has one angle of 84⁰.
!      Write down the possible sizes of the other two angles in the triangle.
                                          Pair 1 ..................... and .................... degrees
                                           Pair 2 .................... and .................... degrees
                                                                                                     (3)
19.!   Below is a kite.
!      Calculate the size of angle y.
                                                                                  .........................
                                                                                                       (3)
20.
!     Triangles ACD and BCD are both isosceles.
!     AC is a straight line.
!     Is ADC a right angle?
!     Clearly explain your answer.
                                                  (4)
21.
!     DEF is a straight line.
!     CE = CF.
!     Angle ECF is 40⁰.
!     Angle DCE is 15⁰.
!     Find the size of the angle marked y.
                                             .........................⁰
                                                                   (4)