Area of polygons and circles | interior angles

Find the area of the trapezoid.

• 28.75 cm²

• 24.08 cm²

• 22.97 cm²

• 23.56 cm²

Answer explanation

It's important to understnand how to use the formula. Don't be tricked by the variables.

Find the area of the trapezoid.

• 33.75 cm²

• 32.48 cm²

• 24.51 cm²

• 29.98 cm²

Answer explanation

Be careful with finding the two bases. Don't be tricked by the variables.

Find the base, height, and the area of the parallelogram.

• base: 56 yd

  height: 32 yd

  area: 1792 yd²

• base: 56 yd

  height: 32 yd

  area: 896 yd²

• base: 32 yd

  height: 56 yd

  area: 1792 yd²

• base: 32 yd

  height: 56 yd

  area: 896 yd²

Answer explanation

Consider the definition of the height: the shortest distance from the base of a shape to the opposite.

Find the area of the parallelogram.

• 13.26 cm²

• 15.6 cm²

• 30.6 cm²

• 15.3 cm²

Answer explanation

When there are many numbers given, make sure you identify the right base and height to calculate the answer.

Find the base, height, and area of the triangle.

• base: 24 in

  height: 7 in

  area: 84 in²

• base: 7 in

  height: 24 in

  area: 84 in²

• base: 7 in

  height: 25 in

  area: 87.5 in²

• base: 24 in

  height: 25 in

  area: 300 in²

To find the area of the triangle, which of the following is correct?

Answer explanation

You need to first know the formula to find the area of a triangle. Then you need to correctly identify the base ad the height of the triangle.

Mr. Moo owns a rectangular shape farm. He wants to know how big is it. He measures the farm and he finds that the length of the farm is 200 ft, the width is 150 ft, and the diagonal is 250 ft. Can you help him to find the area of the farm?

• 30000 ft²

• 15000 ft²

• 37500 ft²

• 50000 ft²

Ms. Salsa decides to renovate her house and she is using many squared tiles for the floor. If the side of each tile is 11 inches and she needs 20 of the tiles, what's the area of the floor?

• 220 in²

• 2420 in²

• 4400 in²

• 440 in²

Answer explanation

consider the size of each tile (11x11), and then multiple it by the number of tile needed.

Find radius and area of the circle. Round your answer to nearest tenth.

• radius: 10 m

  area: 314.2 m²

• radius: 10 m

  area: 314.16 m²

• radius: 5 m

  area: 78.5 m²

• radius: 5 m

  area: 314.2 m²

Find the diameter, area, and circumference of the circle. Round your answer to the first decimal place.

• diameter: 7 mm

  area: 153.9 mm²

  circumference: 43.0 mm

• diameter: 14 mm

  area: 153.9 mm²

  circumference: 43.0 mm

• diameter: 7 mm

  area: 615.8 mm²

  circumference: 87.0 mm

• diameter: 14 mm

  area: 615.8 mm²

  circumference: 87.0 mm