Question

ind the area of each triangle.

a.

A right triangle with base of 9 centimeters and height of 6 centimeters.
b.

A triangle with base 12 meters, height 3 meters, and the longer side of 9 meters. The longer side is extended to form a right triangle, whose height is 4 meters.

Answer 1

Use area = 1/2 · base · height.

a) 1/2 · 9 · 6 = 27 cm^2.

b) For the given triangle: 1/2 · 12 · 3 = 18 m^2.
For the right triangle after extension: 1/2 · 12 · 4 = 24 m^2.