Perimeter and Area Challenges: Triangles and Rectangles

A triangle has sides measuring 5 cm, 7 cm, and 8 cm. What is the perimeter of the triangle?

• 20 cm

• 18 cm

• 15 cm

• 22 cm

A rectangle has a length of 10 m and a width of 4 m. What is the area of the rectangle?

• 20 m²

• 30 m²

• 50 m²

• 40 m²

If a trapezoid has bases of 6 m and 10 m, and a height of 5 m, what is its area?

• 40 m²

• 20 m²

• 50 m²

• 30 m²

A triangle has a base of 12 cm and a height of 5 cm. What is the area of the triangle?

• 40 cm²

• 15 cm²

• 24 cm²

• 30 cm²

A rectangular garden is 15 ft long and 10 ft wide. What is the perimeter of the garden?

• 50 ft

• 40 ft

• 30 ft

• 60 ft

A triangle has a perimeter of 24 cm. If one side is 8 cm, what could be the lengths of the other two sides?

• (5 cm, 11 cm)

• (4 cm, 12 cm)

• Possible lengths of the other two sides are (7 cm, 9 cm) or (9 cm, 7 cm) or (8 cm, 8 cm).

• (6 cm, 10 cm)

A rectangle has an area of 36 square meters and a width of 4 meters. What is the length of the rectangle?

• 8 meters

• 6 meters

• 9 meters

• 10 meters

A trapezoid has a height of 3 m and bases of 4 m and 8 m. What is the perimeter if the non-parallel sides are each 5 m long?

• 22 m

• 20 m

• 18 m

• 24 m

If a triangle has an area of 20 square cm and a base of 10 cm, what is its height?

• 4 cm

• 8 cm

• 5 cm

• 6 cm

A rectangular swimming pool is 25 m long and 10 m wide. What is the total perimeter of the pool?

• 80 m

• 60 m

• 50 m

• 70 m