Perimeter, Area, and Surface Area — Answer Key
Part A: Fill in the Blank
Write the missing word or number on each line.
1. A parallelogram has base 14 m and height 6 m; its area is 84 square meters.
14 times 6 equals 84 square meters of parallelogram area.
2. A trapezoid with parallel sides 10 and 14 and height 8 has area 96 square units.
Half of 24 is 12; 12 times 8 equals 96 square units.
3. A playground section is a parallelogram with base 25 ft and height 12 ft; area is 300 square feet.
25 times 12 equals 300 square feet of play area.
4. A trapezoid decomposes into a rectangle (5 by 8) and triangle (base 3, height 8); total area is 52 square units.
40 plus 12 equals 52 square units in the full trapezoid.
5. A walkway parallelogram has base 18 ft and height 4 ft; area is 72 square feet.
18 times 4 equals 72 square feet covering the walkway.
6. A garden trapezoid has parallel sides 7 and 11 and height 6; area is 54 square meters.
Half of 18 is 9; 9 times 6 equals 54 square meters.
7. A parallelogram banner has base 30 in and height 9 in; area is 270 square inches.
30 times 9 equals 270 square inches of banner fabric.
8. A trapezoid divides into two triangles with areas 18 and 22; total area is 40 square units.
18 plus 22 equals 40 square units in the trapezoid.
9. A soccer practice grid is a parallelogram with base 40 m and height 25 m; area is 1000 square meters.
40 times 25 equals 1000 square meters of practice surface.
Part B: Matching
Match each item on the left to the correct answer on the right.
1. Match each item to its correct answer.
Parallelogram base 6, height 9
→ Area 54 square units
Area 54 square units
Trapezoid bases 4 and 8, height 5
→ Area 30 square units
Area 30 square units
Triangle base 10, height 6
→ Area 30 square inches
Area 30 square inches
Rectangle 8 by 11
→ Area 88 square units
Area 88 square units
6 times 9 is 54; half of 12 times 5 is 30; half of 10 times 6 is 30; 8 times 11 is 88.