Perimeter, Circumference, Area of Basic Shapes

What is the perimeter of this rectangle?

• 21 units

• 12 units

• 3 units

• None of the above.

What is the distance around a circle?

• Circumference

• Area

• Diameter

• Radius

The circumference of a circle is

• The measurement from an edge of a circle to another edge.

• The measurement around the circle

• The measurement from an edge of a circle to another edge going through the center

• The measurement from the center of the circle to an edge of the circle

What is the formula for finding the circumference of a circle?

• C = r²

• C = rd

• A = π·r²

• C = π·d

What is the diameter?

• 8

• 16

• 10

• 4

Find the area

• 37.68 ft²

• 18.84 ft²

• 113.04 ft²

• 9.42 ft²

Find the area of the circle

• 56.52 in²

• 254.34 in²

• 1017.36 in²

• 113.04 in²

Find the area of a triangle with a base of 7 mm and a height of 10 mm?

• 70 mm squared

• 35 mm squared

• 17 mm squared

• 8.5 mm squared

Find the area of the circle with radius 3 cm below.

• 100 cm²

• 18.84 cm²

• 9.42 cm²

• 28.26 cm²

What is the area of the rectangle?

• 15 sq cm

• 15 cm

• 16 sq cm

• 16 cm