Area of triangles, parallelograms and composite shapes

Answer Key - Grade 6 Math Worksheet - Challenge Me

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

1. 1.

   Pia's paint tray is a trapezoid with parallel sides 17 cm and 9 cm, height 15 cm and slanted side 17 cm. It already has a few drips. What is its area in square cm?

   195
2. 2.

   Ren's carrot patch is a trapezoid with parallel sides 15 ft and 7 ft, height 6 ft and slanted side 10 ft. The carrots are lining up. What is its area in square ft?

   66
3. 3.

   Zee's paper sign is a rectangle, 14 by 6 cm, with a triangle roof. The roof has base 14 cm, height 5 cm, slanted side 13 cm. What is the whole area in square cm?

   119
4. 4.

   Ari's house-shaped card is a rectangle, 8 by 9 cm, with a triangle roof. The roof has base 8 cm, height 8 cm, slanted side 10 cm. What is the whole area in square cm?

   104
5. 5.

   Bo's triangular paper flag has an area of 30 square cm and a base of 6 cm. It waves hello to everyone. What is its height in cm?

   10
6. 6.

   Esme's triangular sail has an area of 48 square ft and a base of 8 ft. It needs a lot of wind. What is its height in ft?

   12
7. 7.

   Milo's plus-shaped dog yard has two crossing strips, each 4 ft wide. One strip is 12 ft long and the other is 10 ft long. What is its area in square ft?

   72
8. 8.

   Noah's plus-shaped bee garden has two crossing strips, each 5 ft wide. One strip is 15 ft long and the other is 12 ft long. Buzz, buzz! What is its area in square ft?

   110
9. 9.

   Ren's sandbox is a trapezoid with parallel sides 16 ft and 4 ft, height 9 ft and slanted side 15 ft. Buckets are already waiting. Which is its area?

   • 150 square ft
   • 90 square ft
   • 180 square ft
   • 90 ft
10. 10.

    Tala's toy ramp is a trapezoid with parallel sides 19 cm and 3 cm, height 12 cm and slanted side 20 cm. The toy cars are lining up. Which is its area?

    • 132 cm
    • 264 square cm
    • 220 square cm
    • 132 square cm