Question

Find the missing dimension of the triangle.

Area = 30 mm squared
6 mm = height
b = mm

Answer 1

b = 10 mm

Explanation:

the area (A) of a triangle is calculated as

A =
`(1)/(2)`bh ( b is the base and h the height )

given A = 30 and h = 6 , then

`(1)/(2)`b × 6 = 30 , that is

3b = 30 ( divide both sides by 3 )

b = 10