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The length of the base of an isosceles triangle is 42.67 inches. Each base angle is 31.84 degrees. Find the length of each of the two equal sides of the triangle.

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C1042

Answer:

The length of each of the two equal sides of the triangle is 25.1cm

Explanation:

Cut isoceles triangle into 2 right-angle triangle.

42.67in ÷ 2 = 21.335in

Using trigonometric formula:

Let angle = ?°

cos ?° = adjacent/hypotanuse

cos 31.84° = 21.335/hypo

hypo = 21.335/cos 31.84°

= 25.1inches (3s.f)

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drakeS13
Just like they said, 25.1

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