Question

What is the area of this triangle?

A=bh2


a-54 cm²

b-90 cm²

c-108 m²

d-216 m²

Answer 1

It’s a because 12x9=108 then divide it by 2 and you have 54

Answer 2

a

Explanation:

The area (A) of a triangle is calculated as

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

Here b = 9 and h = 12 , then

A =
`(1)/(2)` × 9 × 12 =
`(1)/(2)` × 108 = 54 cm²