Question

If a polygon has 10 sides out of which 5 sides measure 5 m and the other 5 sides measure 8 m, then the perimeter of the poylgon is ____

• A. 65 m
• B. 75 m
• C. 85 m
• D. 95 m

Answer 1

The correct option is A 65 m

Perimeter of polygon = Sum of the lengths of sides of the polygon.
Given, 5 sides measure 5 m and other 5 sides measures 8 m
Hence, perimeter of the given polygon = 5 + 5+ 5 + 5 + 5 + 8 + 8 + 8 + 8 + 8
= (5$\times$5)+ (5$\times$8)
= 65 m.