Area of parallelograms, trapezoids and rhombuses

Answer Key - Grade 7 Math Worksheet

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

1. 1.

   Luz's lawn is a parallelogram with base 4.5 m, height 2.8 m and slanted sides 3.5 m. It needs mowing already. What is its area in square meters?

   12.6
2. 2.

   Noah's flower border is a parallelogram with base 4 ft, height 3/4 ft and slanted sides 5/4 ft. The flowers stand in a neat row. What is its area in square feet?

   3
3. 3.

   Pia's garden plot is a trapezoid: parallel sides 3.4 m and 2.2 m, height 1.6 m, slanted side 2 m. The peas wave hello. What is its area in square meters?

   4.48
4. 4.

   Ren's lawn is a trapezoid: parallel sides 9.5 m and 6.5 m, height 4 m, slanted side 5 m. A robin keeps watch. What is its area in square meters?

   32
5. 5.

   Tala's name tag is a trapezoid: parallel sides 6.5 cm and 4 cm, height 2.4 cm, slanted sides 2.5 cm and 3 cm. It says hi. What is its area in square cm?

   12.6
6. 6.

   Ari's paper banner is a trapezoid: parallel sides 3 ft and 2 ft, height 3/4 ft, slanted side 5/4 ft. It says GO TEAM. What is its area in square feet?

   15/8
7. 7.

   Bo's kite is a rhombus with diagonals 0.9 m and 1.2 m. Each side is 0.75 m. It wants to touch a cloud. What is its area in square meters?

   0.54
8. 8.

   Luz's name tag is a trapezoid: parallel sides 5 cm and 3.2 cm, height 2.4 cm, slanted side 3 cm. It has a smiley face on it. Which expression gives its area?

   • (5 + 3.2) × 2.4
   • (5 + 3.2) × 3 ÷ 2
   • 5 × 2.4
   • (5 + 3.2) × 2.4 ÷ 2
9. 9.

   Noah's window pane is a trapezoid: parallel sides 3.6 ft and 2.4 ft, height 1.6 ft, slanted side 2 ft. It lets in lots of sun. Which expression gives its area?

   • (3.6 + 2.4) × 2 ÷ 2
   • 3.6 × 1.6
   • (3.6 + 2.4) × 1.6 ÷ 2
   • (3.6 + 2.4) × 1.6
10. 10.

    Pia's flower bed is a parallelogram that leans a lot: base 2.5 ft, height 3 ft, slanted sides 5 ft. It looks like it is in a hurry. What is its area in square feet?

    7.5