The sides of the triangle are related as 7: 8: 9. The perimeter of the triangle is 48cm. Find the length of each side.

1. Find the number of parts of all sides of a given triangle for which we add them together.

7 + 8 + 9 = 24 parts make up all sides of the triangle.

2. Find how many centimeters are there for one such part, to do this, divide the perimeter of the triangle by the number of parts.

48/24 = 2 (cm) falls on one part.

3. Find the first side of the triangle by multiplying the number of its parts by the number of centimeters in one part.

7 * 2 = 14 cm first side.

4. Let’s calculate the other sides in the same way.

Second side: 8 * 2 = 16 (cm)

Third side: 9 * 2 = 18 (cm).

Answer: 14 cm; 16 cm; 18 cm.