Question

A shape is made up of 10 right triangles of equal size.Each right triangle has a base of 5cm and a height of 4cm.What is the total area in square centimeters,of the shape?​

Answer 1

The area if the shape is 10 cm².

Explanation:

First, you have to find the area of each triangle :

`area = (1)/(2) * base * height`

`let \: base = 5,height = 4`

`area = (1)/(2) * 5 * 4`

`area = (1)/(2) * 20`

`area = 10 {cm}^(2)`

This shape contain 10 similar triangles so you have to multiply by 10 :

`area = 10 * 10`

`area = 100 {cm}^(2)`