Finding area.

Level 1

In the triangle ∆ABC, AB=10, BC=10 and ABC angle=60 degrees. Find the area of this triangle.

(Round your answer to the nearest integer.)

41 45 47 43

Raiyun Razeen by Raiyun Razeen , 22, Bangladesh

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2 solutions

Denton Young
Jun 12, 2018

By sine rule, area = 1/2 * 10 * 10 * sin(60) = 50 * (0.86) = 43

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Shankhadeep Dey
Jan 6, 2014

AB=10 cm, BC=10 cm, and ABC=60. so the other side CA=10 cm the area of the triangle is 1.732/4*100= 43.3

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AB=10 cm, BC=10 cm, and ABC=60. So This is An Equilateral Triangle,so CA=10 So,By Heron's Formula Answer Will Be 43.3012....

Âkãsh TîKê - 7 years, 5 months ago

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