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7. Lach side of a polygon is 3.8 cm in length and its perimeter is 358.8 cm. How many sides does the polygonhave?47 |
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Answer» Let the number of sides of the polygon ben.Length of each side of the polygon = 3.8 cm∴ Perimeter of the polygon = (3.8××n) cmBut it is given that its perimeter is 22.8 cm.∴ (3.8××n) cm = 22.8 cm⇒n=(22.83.8)22.83.8=2283822838= 6 Hence, the given polygon has six sides Let the number of sides of the polygon ben.Length of each side of the polygon = 3.8 cm∴ Perimeter of the polygon = (3.8××n) cmBut it is given that its perimeter is 22.8 cm.∴ (3.8××n) cm = 22.8 cm⇒n=(22.83.8)22.83.8=2283822838= 6 Hence, the given polygon has six sides. |
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