Perimeter of Triangle

Find the perimeter of the triangle.

• 21.15 f

• 20.2 ft

• 26.7 ft

• 22 ft

A triangular sign has a perimeter of 70 inches. Two of the sides are each 19 inches. What is the length of the 3rd side in inches?

• 32

• 89

• 51

• A triangle has 3 sides.

Fill in the blank: Perimeter is the distance _________ a figure.

• Around

• Inside

• Between

• Above

Find the perimeter of this triangle.

• 42 ft

• 46 ft

• 56 ft

• 54 ft

1. What is the perimeter of the triangle having sides 8cm, 9cm and 10cm?

Mathematical Equivalence

ON

The perimeter of the equilateral triangle is 15 inches. Select ALL equations that could be used.

(a)   ​ ​ (b)  

• 3x = 15

• x + x + x = 15

• x =153

• x = 15 – 3

Find the perimeter of the following triangle:

• 12 units

• 6 units

• 20 units

• 12 units

What is the missing length if the perimeter is 30 cm?

• 12 cm

• 13 cm

• 30 cm

• 5 cm

Perimeter of triangle?

• 32 units

• 20 units

• 10 units

• 17 units