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.

   Ren's paper banner has a rectangle in the middle and a triangle at each end. It has pointy ends and big plans. What is its area in square cm?

   456
2. 2.

   Tala's flower bed has a rectangle in the middle and a triangle at each end. The bees call it the arrow. What is its area in square meters?

   21
3. 3.

   Luz's flower bed is a rectangle with a missing corner. Each square meter needs 40 liters of mulch. The mulch pile is enormous. How many liters of mulch does it need?

   880
4. 4.

   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
5. 5.

   Pia's house-shaped mural is a rectangle with a triangle on top. Each square meter needs 0.2 liters of paint. The roof corner is a tricky one. How many liters of paint does it need?

   4.32
6. 6.

   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
7. 7.

   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
8. 8.

   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
9. 9.

   Ari's paper cut-out is a rectangle with a triangle on top. Its whole area is 14 square inches. The glue stick wants a turn. How tall is the triangle in inches?

   3.2
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