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

Answer:

The area if the shape is 10 cm².

Step-by-step explanation:

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

$area = \frac{1}{2} \times base \times height$

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

$area = \frac{1}{2} \times 5 \times 4$

$area = \frac{1}{2} \times 20$

$area = 10 {cm}^{2}$

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

$area = 10 \times 10$

$area = 100 {cm}^{2}$