Question

the area of a triangle is equal to the area of a square whose each side measure 60 m find the side of the triangle whose corresponding altitude is 90m

Answer 1

Area of square= side×side
=60×60
3600 m sq. 
Given,
Area of square=Area of Triangle
Therefore area of triangle =3600m sq. 

Area of triangle=1/2×base×height
3600=1/2×b×90
3600×2/90=Base
7200/90=Base
Base=80m (Ans)

Answer 2

area of the triangle is 1800 square meter