Find the length of side AB if the perimeter of the figure is 45 cm and side BC = 13cm СD = 10cm DE = 7cm EA = 5cm
| August 14, 2021 | education
The perimeter of a geometric figure is calculated by adding the lengths of all its sides. Since we know the perimeter of a given figure and the lengths of the four sides, therefore, we can also calculate the length of the fifth side:
AB = 45 – (13 + 10 + 7 + 5) = 45 – 35 = 10 cm.
Answer: The length of the AB side is 10 cm.
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