Mastering Area and Perimeter: Trapezoids and Shapes

A triangle has a base of 6 cm and a height of 4 cm. What is its area?

• 10 cm²

• 12 cm²

• 8 cm²

• 14 cm²

A rectangle has a length of 10 m and a width of 5 m. What is its perimeter?

• 25 m

• 30 m

• 15 m

• 20 m

A trapezoid has bases of 8 m and 12 m, and a height of 5 m. What is its area?

• 30 m²

• 60 m²

• 40 m²

• 50 m²

If a triangle has sides measuring 3 cm, 4 cm, and 5 cm, what is its perimeter?

• 12 cm

• 8 cm

• 10 cm

• 15 cm

A rectangle's area is 48 square feet, and its length is 12 feet. What is its width?

• 10 feet

• 4 feet

• 8 feet

• 6 feet

A trapezoid has an area of 30 square inches and bases of 5 inches and 15 inches. What is its height?

• 6 inches

• 3 inches

• 5 inches

• 4 inches

If a triangle has an area of 24 square cm and a base of 8 cm, what is its height?

• 4 cm

• 6 cm

• 8 cm

• 10 cm

A rectangle has a perimeter of 36 cm. If its length is 10 cm, what is its width?

• 6 cm

• 10 cm

• 12 cm

• 8 cm

A trapezoid has a height of 7 m and bases of 9 m and 15 m. What is its area?

• 70 m²

• 56 m²

• 100 m²

• 84 m²

If the perimeter of a triangle is 18 cm and two sides are 7 cm and 5 cm, what is the length of the third side?

• 10 cm

• 6 cm

• 8 cm

• 4 cm