The perimeter of the quadrangle is 52 cm, one side is 1 dm4 cm, the second is 5 cm less than the first

univerkov | April 26, 2021 | education

The perimeter of the quadrangle is 52 cm, one side is 1 dm4 cm, the second is 5 cm less than the first, and the third is 8 cm more than the second. find the length of the fourth side.

1) Let us determine the length of the second side of this quadrilateral if we know that its first side is 5 cm longer and it has a length of 1 dm 4 cm.

1 dm 4 cm = 14 cm.

14 – 5 = 11 cm.

2) Determine the length of the third side of the existing quadrangle if it is 8 cm longer than its second side, and the length of the second side is 11 cm.

11 + 8 = 16 cm.

3) We find out how long the fourth side has, if we know the lengths of the three sides, and the perimeter is 52 cm.

52 – 14 – 11 – 16 = 11 cm.

Answer: the length of the fourth side was 11 cm.

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