If the area of a square with side a s equal to the area of a triangle with base a, then the altitude of the triangle is

A a

B 2a

C 5a

D 3a

Correct Answer: Option B

Area of a square with side a = a² sq unts

Area of a triangle with base a = (1/2) \(\times\) a \(\times\) h sq.unts

a² =\(\frac12\) \(\times\) a \(\times\) h

=> h = 2a

altitude of the triangle is 2a