Find the perimeter of a quadrangle, 2 sides of which are 30 mm long and the other two sides are 20 cm each.
| July 2, 2021 | education
1. First, let’s convert 30 millimeters to centimeters. 10 mm = 1 cm.30 mm / 10 mm = 3 cm.
2. The perimeter of a quadrilateral is the sum of the lengths of all sides.
Add and calculate
20 + 20 + 3 +3 = 46 centimeters
Answer: the perimeter of this quadrangle is 46 centimeters
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