Question

the base of an isosceles triangle measure 80 cm and its area is 360 cm². Find the perimeter of the triangles

Answer 1

Hey mate


Here's your answer

This is an isosceles triangle so two sides will be equal.

So, other sides of triangle,

1/2 base X height = Area of a triangle
1/2 80 X h = 360
80 X h = 360 X 2
80 X h = 720
h = 720/80
h = 90 cm

Hence, other sides of triangles are 90 cm.

Now, we will find perimeter of this triangle.

Perimeter of Triangle
= Sum of all sides
= 90 + 90 + 80
= 260 cm

Hope this helps you


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