Areas and Perimeters

Find the area of a triangle with base 6 cm and height 4 cm.

What is the formula for finding the perimeter of a garden in which Firdavs planted flowers?

• 5 units long and 3 units wide

• 8 units long and 2 units wide

• 10 units long and 6 units wide

• 12 units long and 4 units wide

• 6

• 8

• 9

• 10

Ellen is comparing two rectangles. Which statement correctly compares the areas and perimeters of the rectangles?

• The rectangles have equal areas, and rectangle P has a greater perimeter.

• The rectangles have equal areas, and rectangle Q has a greater perimeter.

• The rectangles have equal perimeters, and rectangle P has a greater area.

• The rectangles have equal perimeters, and rectangle Q has a greater area.

2/3

3/8

5/3

5/8

• 2/3

• 3/8

• 5/3

• 5/8

• 1/4

• 1/6

• 1/8

• 1/10

• 1/3

• 2/3

• 3/3

• 4/3

What is the perimeter of this shape?

• 24 cm

• 18 cm

• 12 cm

• 30 cm

Find the unknown side length if the perimeter is 30 cm.

• 5 cm

• 4 cm

• 8 cm

• 10 cm