1.

Some shapes are given below :Find out the perimeter of these shapes.

Answer»

(a) We know that Perimeter of regular shapes = number of sides × length of a side

∴ Perimeter = 3 × 10 = 30 cm.

(b) Perimeter = 4 × 12 = 48 cm.

(c) Perimeter = 5 × 7 = 35 cm.



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