Question

The area of a triangle is 40 cm2. The height of the triangle is 4 cm. What is the measure of the base of the triangle?

A.
40 cm
B. 32 cm
C. 28 cm
D. 20 cm

Answer 1

Explanation:

Givens

Height = h = 4cm

b = ?

Area = 40 cm^2

Formula

Area = 1/2 * h * b

Solution

40 cm^2 = 1/2 * 4 * b Combine the right

40 cm^2 = 2 * b Divide by 2

40 cm^2 /2 = 2b/2 Do the division

20 cm = b

Answer D