Area of parallelograms, trapezoids and rhombuses

Answer Key - Grade 7 Math Worksheet - Challenge Me

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

1. 1.

   Pia's mural is a parallelogram with an area of 9.12 square meters and a base of 3.8 m. It shows a dancing robot. What is its height in meters?

   2.4
2. 2.

   Ren's garden bed is a parallelogram with an area of 10.5 square meters and a base of 4.2 m. The worms have big plans. What is its height in meters?

   2.5
3. 3.

   Tala's quilt patch is a parallelogram with an area of 1/2 square foot and a base of 3/4 ft. It is the coziest patch. What is its height in feet?

   2/3
4. 4.

   Zee's window pane is a parallelogram with an area of 5/8 square foot and a base of 5/6 ft. Birds wave through it. What is its height in feet?

   3/4
5. 5.

   Ari's flower bed is a trapezoid with area 12.6 square meters, height 2.8 m and top side 3 m. The tulips line up. How long is its bottom side in meters?

   6
6. 6.

   Bo's lawn is a trapezoid with area 27.3 square meters, height 4.2 m and top side 4.5 m. Picnics happen here. How long is its bottom side in meters?

   8.5
7. 7.

   Esme's name tag is a trapezoid with area 19.2 square cm, height 3.2 cm and top side 4.5 cm. It is extra sparkly. How long is its bottom side in cm?

   7.5
8. 8.

   Luz's paper diamond is a rhombus with an area of 13.5 square cm. One diagonal is 4.5 cm. It is a little sparkly. How long is the other diagonal in cm?

   6
9. 9.

   Milo's paper diamond is a rhombus with an area of 8.4 square inches. One diagonal is 3.5 in. It twirls in the breeze. How long is the other diagonal in inches?

   4.8
10. 10.

    Zee's lawn is a parallelogram with base 8 m and height 2.8 m. Each square meter needs 35 g of grass seed. The birds are watching. How many grams of seed does it need?

    784