Question

an isosceles triangle the height of this triangle is 20c.m . find area​

Answer 1

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Base of the isosceles triangle= 20 cm

Perimeter of the isosceles triangle = 42 cm

The equal sides of the isosceles triangle are each = (42-20)/2 = 11 cm

Perimeter = 2s = 42

S = 21

Apply Heron’s equation to get the area of the isosceles triangle = [21(21–20)(21–11)(21-11)]^0.5

= 45.82575696 sq cm.

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Answer 2

Step-by-step explanation:

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