Perimeter of rectangles and triangles

The distance around the outside of an object is called the...

• area

• length

• perimeter

• width

Tags

CCSS.3.MD.D.8

What is the perimeter of this rectangle?

• 14 cm

• 24cm

• 38 cm

• 19 cm

Tags

CCSS.3.MD.D.8

What is the perimeter of this triangle?

• 26 m

• 32 m

• 17 m

• 14 m

What is the perimeter of this rectangle?

• 5 cm

• 12 cm

• 16 cm

• 20 cm

Tags

CCSS.3.MD.D.8

What is the perimeter of this triangle?

• 33 cm

• 15 cm

• 21 cm

• 31 cm

Tags

CCSS.3.MD.D.8

What is the perimeter of this rectangle?

• 24 feet

• 36 feet

• 20 feet

• 40 ft

Tags

CCSS.3.MD.D.8

What formula do we use to find the perimeter of a triangle?

• P = 2l + 2w

• P= a + b + c

What formula do we use to find the perimeter of a rectangle?

• P= a + b + c

• P = 2l + 2w

Tags

CCSS.3.MD.D.8