Area of triangles, parallelograms and composite shapes

Answer Key - Grade 6 Math Worksheet

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

1. 1.

   Kira's herb bed is a parallelogram with base 11 ft, slanted side 13 ft and height 12 ft. The basil is already taking over. What is its area in square ft?

   132
2. 2.

   Milo's log walkway is a parallelogram with base 14 ft, slanted side 5 ft and height 4 ft. The logs feel very important. What is its area in square ft?

   56
3. 3.

   Noah's stone path is a parallelogram with base 13 ft, slanted side 5 ft and height 3 ft. Stepping stones, not skipping stones. What is its area in square ft?

   39
4. 4.

   Tala's sail is a right triangle with legs 16 ft and 12 ft and a longest side of 20 ft. The wind is on Tala's side. What is its area in square ft?

   96
5. 5.

   Zee's sunflower bed is a right triangle with legs 8 ft and 15 ft and a longest side of 17 ft. The sunflowers keep staring at the sun. What is its area in square ft?

   60
6. 6.

   Ari's plus-shaped garden has a long rectangle, 10 ft by 2 ft, and a tall one, 3 by 8 ft. They share a piece 3 by 2. What is its area in square ft?

   38
7. 7.

   Bo's plus-shaped reading rug has a long rectangle, 11 ft by 3 ft, and a tall one, 2 by 7 ft. They share a piece 2 by 3. What is its area in square ft?

   41
8. 8.

   Esme's plus-shaped band stage has a long rectangle, 9 ft by 4 ft, and a tall one, 3 by 10 ft. They share a piece 3 by 4. What is its area in square ft?

   54
9. 9.

   Jun's sail is a triangle with base 18 ft, height 4 ft and one slanted side of 5 ft. The boat is named Wave Hello. Which is its area?

   • 36 ft
   • 36 square ft
   • 72 square ft
   • 45 square ft
10. 10.

    Kira's paper pennant is a triangle with base 16 cm, height 5 cm and one slanted side of 13 cm. Go, team, go! Which is its area?

    • 40 cm
    • 40 square cm
    • 80 square cm
    • 104 square cm