Question

1. calculate the area of the composite figure.

6
8
20
220 square units
34 square units

Explanation:

Step1: Calculate rectangle area

The area formula for a rectangle is $A = l\times w$. Here, length $l = 20$ and width $w = 8$, so $A_{rectangle}=20\times8 = 160$.

Step2: Calculate triangle area

The area formula for a triangle is $A=\frac{1}{2}\times b\times h$. The base $b = 20$ and height $h = 6$, so $A_{triangle}=\frac{1}{2}\times20\times6= 60$.

Step3: Calculate composite - figure area

The area of the composite figure is the sum of the rectangle and triangle areas. $A = A_{rectangle}+A_{triangle}=160 + 60=220$.

Answer:

220 square units