Question

The area of a triangle is equal to the area of a parallelogram whose base 15 cm and altitude is 8cm if the base of triangle is 20 cm find its altitude

Answer 1

Area of parallelogram= base×height
= 15×8
=120square
Area of triangle=1/2×base×height

Area of triangle=Area of Parallelogram= 120square cm

Area of triangle= 1/2 × base × height
120. = 1/2 × 20 × height
120×2
_____= Height
20
Height = 240/20
Height = 12cm
Altitude of a triangle 12cm