Mensuration - 2D
Mensuration - 2D
A
cm and 5 cm and the angle between them is 45°. ,d lekarj prqHkZqt dh nks vklUu Hkqtk,¡ Øe'k% 12 lseh vkS
ml f=kHkqt dk {ks=kiQy Kkr dhft,] ftldh nks Hkqtkvksa dh5 lseh gSaA ;fn ,d fod.kZ 13 lseh yack gS] rks lekarj prqHkZ
yackbZ;k¡ 4 lseh vkSj 5 lseh gS] vkSj muds chp 45°
dk dks.k dk {ks=kiQy D;k gS\
gSA
Y
SSC (a) 60 cm2 (b) 30 cm2
(a) 7 2cm 2 (b) 4 2cm 2
(c) 75 cm 2
(d) 25 cm2
8. The length of a rectangular plot is three times its
3.
(c) 6 2cm2 (d) 5 2cm2
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In an isosceles triangle, if the unequal side is 8 cm
breadth. If the area of the rectangular plot is 2700
m2, then what is the breadth of the rectangular plot?
and equal side is 5 cm. then the area of the triangle
is:
,d vk;rkdkj Hkw[kaM dh yEckbZ mldh PkkSM+kbZ dh rhu x
;fn vk;rkdkj Hkw[kaM dk {ks=kiQy 22700
gS] ehvk;rkdkj
rks
,d lef}ckgq f=kHkqt esa] ;fn vleku Hkqtk 8 lseh vkSj cjkcj
S
Hkw[kaM dh PkkSM+kbZ fdruh gS\
Hkqtk 5 lseh gSA rks f=kHkqt dk {ks=kiQy gS%
SSC
2
(a) 12 m (b) 28 m
(a) 12 cm (b) 25 cm2
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(c) 30 m (d) 20 m
(c) 6 cm2 (d) 11 cm2
9. If the semi-perimeter and area of a rectangular field
4. What will be the area of a plot of quadrilateral
whose length and breadth are 'x' and 'y' is 12 cm and 28
shape, one of whose diagonals is 20 m and lengths
cm², respectively, then find the value of x4 + x²y² + y4.
of the perpendiculars from the opposite vertices
;fn ml vk;rkdkj eSnku dh v/Z&ifjf/ vkSj {ks=kiQy Øe'k%
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ml leprqHkqZt dk {ks=kiQy² esa)
(lsehD;k gS] ftldh izR;sd (a) 250 metres (b) 300 metres
Hkqtk 13 lseh gS vkSj ,d fod.kZ 24 lseh gS\ (c) 200 metres (d) 210 metres
S 18. Three circles of radius 6 cm are kept touching each
(a) 120 (b) 60 other. The string is tightly tied around these three
circles. What is the length of the string?
(c) 110 (d) 130
6 lseh f=kT;k okys rhu o`Ùkksa dks vkil esa Li'kZ djrs g
12. Find the area of a rhombus if the perimeter of the
rhombus is 52 cm, and one of its diagonals is 10
j[kk x;k gSA bu rhu o`Ùkksa ds pkjksa vksj ,d /kxk dldj
cm long. ck¡/k x;k gSA /kxs dh yEckbZ D;k gS\
S
,d leprqHkZqt dk {ks=kiQy Kkr djsa ;fn leprqHkZqt dk ifjeki (a) 36 + 12 cm (b) 36 + 18 cm
52 lseh gS] vkSj bldk ,d fod.kZ 10 lseh yack gSA (c) 24 + 36 cm (d) 36 + 20 cm
S 19. In a circle of radius 42 cm, an arc subtends an angle
(a) 164 cm2 (b) 144 cm2 of 60° at the centre. Find the length of the arc.
(c) 160 cm2 (d) 120 cm2 22
13. The diagonal of the square is 82 cm. Find the Take
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diagonal of another square whose area is triple that
of the first square. 42 lseh f=kT;k okys ,d o`Ùk esa] ,d pki dsaæ ij d k
60º
oxZ dk fod.kZ82 cm gSA ,d nwljs ,sls oxZ dk fod.kZ dks.k varfjr djrk gSA pki dh yackbZ Kkr dhft,A
A
Kkr dhft, ftldk {ks=kiQy igys oxZ ds {ks=kiQy dk frxquk S
(a) 22 cm (b) 44 cm
gSA
(c) 21 cm (d) 42 cm
SSC CGL 06/12/2022 (Shift-04)
(a) 85 cm (b) 83 cm 20. Find the area of a minor sector of a circle whose
Y
circumference 88 cm and the length of its minor
(c) 82 cm (d) 86 cm
22
14. A copper wire is bent in the form of a square and it arc is 22 cm use .
encloses an area of 30.25 cm2. If the same wire is 7
bent to form a circle, then find the area of the circle. ml o`Ùk ds y?kq f=kT;k•aM dk {ks=kiQy Kkr dhft,] ftldh
H
,d rkacs ds rkj dks ,d oxZ ds vkdkj esa eksM+k tkrk gS vkSj ;gifjf/ 88 lseh gS vkSj blds y?kq pki dh yackbZ 22 lseh gSA
30.25 cm2 dk {ks=kiQy ifjc¼ djkrk gSA ;fn blh rkj dks
22
eksM+dj ,d o`Ùk cuk;k tk,] rks o`Ùk dk {ks=kiQy Kkr dhft,A eku yhft, ] = 7
22
( dk iz;ksx djsaA)
S
7
S (a) 154 cm2 (b) 451 cm2
2
(a) 38.50 cm2 (b) 42.25 cm2 (c) 415 cm (d) 145 cm2
2 21. The area of a sector of a circle is 88 cm² and the
(c) 35 cm (d) 30.25 cm2
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23. From a circular sheet of circumference 264 cm, 3
two equal maximum-sized circular plates are cut (a) 98 6 – 3
off. What will be the circumference of each plate?
22 3
(Use = ) (b) 98 3 – 4
7
264 lseh ifjf/ okyh ,d o`Ùkh; 'khV ls] nks leku vf/dre 3
vkdkj dh o`Ùkkdkj IysVsa dkVh tkrh gSaA çR;sd IysV dh ifjf/
(c) 98 6 – 6
22
fdruh gksxh\ ( = dk ç;ksx dhft,) 3
7 (d) 98 6 – 4
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(a) 264 cm (b) 135 cm 28. If the area of a regular pentagon is 3920 3 cm²,
(c) 176 cm (d) 132 cm then how long is its each side?
24. Find the area (in cm²) of a circle with a maximum
radius that can be inscribed in a rectangle of ;fn ,d le iapHkqt dk {ks=kiQy
3920 3 lseh gS]bldh
2
A
(c) 46 cm
S
(d) 58 cm
(a) 72 (b) 136
29. The length and the breadth of the floor of a rect-
(c) 36 (d) 28
angular hall are 126 feet and 90 feet, respectively.
25. The area (in cm2) of biggest circle that could be
Y
What will be the area (in square feet) of each of
drawn in a square of side 18 cm is:
the largest identical square tiles that can be used
18 lseh Hkqtk okys fdlh oxZ esa [khaps tk ldus okys lcls cM+s
to tile this floor in a way that no part of the floor
o`Ùk dk {ks=kiQy (oxZ lseh esa) gksxk& remains uncovered?
S ,d vk;rkdkj gkWy ds iQ'kZ dh yackbZ vkSj pkSM+kbZ Ø
(a) 91
(c) 49
(b) 81
(d) 168
H 126 iQhV vkSj 90 iQhV gSA çR;sd lcls cM+h leku oxkZd
Vkby dk {ks=kiQy (oxZ iQqV esa) D;k gksxk ftldk mi;ksx b
26. Three circles each of radius 5 cm touch one
another. The area (in cm2) subtended between iQ'kZ ij bl rjg ls Vkby yxkus ds fy, fd;k tk ldrk gS
fd iQ'kZ dk dksbZ Hkh fgLlk •qyk u jgs\
S
them is:
S
5 cm dh f=kT;k okys rhu o`Ùk ,d nwljs dks Li'kZ djrs gSaA
(a) 196 feet²
muds chp varfjr {ks=kiQy
cm(2 esa) fdruk gS\
(b) 256 feet²
S
(c) 324 feet²
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ANSWER KEY
1. (b) 2. (d) 3. (a) 4. (d) 5. (a) 6. (d) 7. (a) 8. (c) 9. (d) 10. (d)
11. (a) 12. (d) 13. (d) 14. (a) 15. (d) 16. (a) 17. (c) 18. (a) 19. (b) 20. (a)
21. (c) 22. (d) 23. (d) 24. (c) 25. (b) 26. (d) 27. (d) 28. (b) 29. (c) 30. (c)
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