Question

The base of an isosceles triangle is 15mm long and the altitude is 8mm. What is the length of the legs of the triangle? Round your answer to the nearest tenth.

Answer 1

10.97 mm

Explanation:

Apply the formula for finding Pythagoras theorem;

Hypotenuse^2 = Base^2 + Height^2

Hyp^2 = 7.5^2 + 8^2

Hyp^2 = 120.25

Hyp =√120.25

Hyp = 10.97 mm