Question

Given the area of a triangle is 40 cm2, if its altitude is 8 cm, its base is 15 cm.

True
False

Answer 1

False!

The area A of the triangle with altitude a and base b is:
A = a*b/2

a = 8 cm
b = 15 cm
_____
A = 8*15/2
A = 120/2
A = 60 cm²

Since 40 cm² ≠ 60 cm², the statement is false.