What is the area of this composite shape?

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in²

Step-by-step explanation:

we know that

The area of the composite figure is equal to the area of a right triangle plus the area of rectangle

see the attached figure to better understand the problem

step 1

Find the area of the right triangle

we know that

The area of triangle is

where

substitute

step 2

Find the area of rectangle

The area of rectangle is equal to

where

substitute

step 3

Find the area of the composite figure

Adds the areas

just needed some points but try socratic