Area of shapes made of smaller shapes

Answer Key - Grade 7 Math Worksheet - Challenge Me

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

1. 1.

   Bo's lawn is an L-shape. Two of its sides are not labeled. The sprinkler took a shortcut. What is its area in square meters?

   47
2. 2.

   Esme's garden bed is an L-shape. Two of its sides are not labeled. The worms are measuring too. What is its area in square meters?

   69.75
3. 3.

   Jun's mural is an L-shape. Two of its sides are not labeled. One corner is saving space for a sunset. What is its area in square meters?

   31
4. 4.

   Kira paints a wall with a window that stays unpainted. Each square meter of wall needs 0.2 liters of paint. The brush is very excited. How many liters of paint does the wall need?

   1.89
5. 5.

   Milo's lawn has a flower bed that needs no seed. Each square meter of lawn needs 30 g of grass seed. Birds, look away. How many grams of grass seed does the lawn need?

   1215
6. 6.

   Noah's garden bed is a rectangle with a triangle on top. Each square meter needs 25 g of plant food. The beans are hungry. How many grams of plant food does it need?

   432
7. 7.

   Ren's quilt patch is a rectangle with a triangle on top. Each square inch needs 12 sequins. It is going to sparkle. How many sequins does it need?

   756
8. 8.

   Tala's garden bed is a rectangle with a triangle on top. Its whole area is 16 square meters. The worms need the height. How tall is the triangle in meters?

   3
9. 9.

   Zee's mural is a rectangle with a triangle on top. Its whole area is 28.2 square meters. The roof is a surprise. How tall is the triangle in meters?

   2.4
10. 10.

    Bo's lawn is a rectangle with a triangle on top. Its whole area is 33.75 square meters. A goose guards the point. How tall is the triangle in meters?

    5