The length of one side of the triangle is 5.5 cm, and the other two sides are 75% of this side.

The length of one side of the triangle is 5.5 cm, and the other two sides are 75% of this side. calculate the perimeter of the triangle.

1) Find out how long the other two unknown sides of the triangle have, if it is known that they are 75% of the length of the first side, and the first side has a length of 5.5 cm.

5.5 – 100%

X – 75%;

X = 5.5 * 75/100%

X = 4.125 cm.

2) We find out what perimeter this triangle has, if it is known that the first side is 5.5 cm long, and the other two sides are 4.125 cm long.

5.5 + 4.125 + 4.125 = 13.75 cm.

Answer: The perimeter of this triangle was 13.75 cm.