### Home > AC > Chapter 4 > Lesson 4.2.1 > Problem4-72

4-72.

Find the area of the entire rectangle in each diagram below. Show all work.

1.  Generic rectangle Left edge is $48$ Interior rectangle Bottom edge is $102$

The area of a rectangle is product of the base times the height.

$4896$ sq. units

1.  Generic rectangle Left edge is $13$ Interior left is blank. Interior right is blank. Bottom left edge is $x$ Bottom right edge is $+7$

The area of the whole rectangle is equal to the sum of the areas of its parts.

1.  Generic rectangle. Left edge is $20$ Interior left is blank. Interior right is blank. Bottom left edge is $32$ Bottom right edge is $13$

$900$ sq. units

1.  Generic rectangle. Left edge top is $15$ Interior top left is blank. Interior top right is blank. $9$ Interior bottom left is blank. Interior bottom right is blank. Bottom left edge is $11$ Bottom right edge is $3$