Question

Find the altitude of a triangle whose area is 45sq cm and base 15cm

Answer 1

altitude = 6 cm

Explanation:

the area (A) of a triangle is calculated as

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

given A = 45 and b = 15 , then

45 =
`(1)/(2)` × 15 × h = 7.5h ( divide both sides by 7.5 )

6 = h

that is the altitude is 6 cm