Area of shapes made of smaller shapes

Answer Key - Grade 7 Math Worksheet - Building Confidence

Circle the best answer, or write your answer on the line.

1. 1.

   Ari's garden bed is an L-shape. A dashed line cuts it into two rectangles, drawn on the grid. The worms are cheering. What is its area in square meters?

   12
2. 2.

   Bo's paper cut-out is an L-shape. A dashed line cuts it into two rectangles, drawn on the grid. The scissors need a nap. What is its area in square inches?

   16.5
3. 3.

   Luz's vegetable patch is an L-shape. It sits inside a box, and the missing corner is shaded on the grid. The carrots are lining up. What is its area in square meters?

   17
4. 4.

   Milo's paper cut-out is an L-shape. It sits inside a box, and the missing corner is shaded on the grid. The glitter went everywhere. What is its area in square inches?

   19
5. 5.

   Noah's lawn is an L-shape. It sits inside a box, and the missing corner is shaded on the grid. The ducks want a closer look. What is its area in square meters?

   12.25
6. 6.

   Tala's house-shaped name tag is a rectangle with a triangle on top. The triangle is half of the dashed rectangle around it. It says hello. What is its area in square cm?

   9
7. 7.

   Zee's flower bed is a rectangle with a triangle on top. The triangle is half of the dashed rectangle around it. The tulips are in a hurry. What is its area in square meters?

   27
8. 8.

   Ari's quilt patch is a rectangle with a triangle on top. The triangle is half of the dashed rectangle around it. It looks like a very small house. What is its area in square inches?

   30
9. 9.

   Bo's garden bed is a rectangle with a triangle on top. The triangle is half of the dashed rectangle around it. The worms called it cozy. What is its area in square meters?

   4.8
10. 10.

    Esme's mural is a rectangle with a triangle on top. The triangle is half of the dashed rectangle around it. It has a lot of sky. What is its area in square meters?

    54