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.

   Luz's paint sponge is a parallelogram with base 13 cm, slanted side 10 cm and height 8 cm. It soaks up paint fast. What is its area in square cm?

   104
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.

   Pia's pizza slice is a triangle with base 10 cm, height 12 cm and one slanted side of 13 cm. It is gone in seconds. What is its area in square cm?

   60
5. 5.

   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
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.

   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?

   • 80 square cm
   • 40 cm
   • 40 square cm
   • 104 square cm
10. 10.

    Luz's treehouse roof is a triangle with base 14 ft, height 8 ft and one slanted side of 10 ft. The squirrels are watching. Which is its area?

    • 56 ft
    • 112 square ft
    • 56 square ft
    • 70 square ft