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Law of Cosines Practice

The document provides a worksheet with 8 practice problems solving for unknown angles and sides of triangles using the Law of Cosines. For each problem, the document gives the known values and has spaces to solve for the unknowns by applying the Law of Cosines formula. The worksheet is intended to help students practice applying the Law of Cosines to find missing values in triangles.

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Ben Cohen
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327 views2 pages

Law of Cosines Practice

The document provides a worksheet with 8 practice problems solving for unknown angles and sides of triangles using the Law of Cosines. For each problem, the document gives the known values and has spaces to solve for the unknowns by applying the Law of Cosines formula. The worksheet is intended to help students practice applying the Law of Cosines to find missing values in triangles.

Uploaded by

Ben Cohen
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
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TWA Name___________________________________

Law of Cosines Practice Date________________


Solve each triangle. Round your answers to the nearest tenth.
1) m C = 105°, a = 28 ft, b = 18 ft 2) m A = 135°, b = 28 mi, c = 24 mi

3) b = 25 in, a = 29 in, m C = 146° 4) m A = 122°, b = 22 ft, c = 30 ft

5) c = 18 m, a = 12 m, b = 28 m 6) a = 16 in, c = 12 in, b = 20 in

7) c = 29 ft, a = 21 ft, b = 13 ft 8) c = 12.3 km, b = 18.6 km, a = 25.1 km

Worksheet by Kuta Software LLC


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TWA Name___________________________________

Law of Cosines Practice Date________________


Solve each triangle. Round your answers to the nearest tenth.
1) m C = 105°, a = 28 ft, b = 18 ft 2) m A = 135°, b = 28 mi, c = 24 mi
m A = 47°, m B = 28°, c = 37 ft m B = 24.3°, m C = 20.7°, a = 48.1 mi

3) b = 25 in, a = 29 in, m C = 146° 4) m A = 122°, b = 22 ft, c = 30 ft


m A = 18.3°, m B = 15.7°, c = 51.7 in m B = 24.1°, m C = 33.9°, a = 45.6 ft

5) c = 18 m, a = 12 m, b = 28 m 6) a = 16 in, c = 12 in, b = 20 in
m C = 26°, m A = 17°, m B = 137° m C = 36.9°, m A = 53.1°, m B = 90°

7) c = 29 ft, a = 21 ft, b = 13 ft 8) c = 12.3 km, b = 18.6 km, a = 25.1 km


m A = 41°, m B = 24°, m C = 115° m A = 106.8°, m B = 45.2°, m C = 28°

Worksheet by Kuta Software LLC


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