The sides of the rectangle are 3: 5: 7, the perimeter of the rectangle is 45.3 cm. Find the sides of the rectangle.

univerkov | March 10, 2021 | education

Let’s find how many parts are in the aspect ratio.

3 + 5 + 7 = 8 + 7 = 15 parts.

Let’s find how long the side falls on one part.

45.3: 15 = 3.02 cm.

Let’s find the length of each side.

3 * 3.02 = 9.06 cm.

5 * 3.02 = 15.1 cm.

7 * 3.02 = 21.14 cm.

Answer: The sides are equal to 9.06 cm; 15.1 cm; 21.14 cm.

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