Question

EXERCISE 31.2
1.
Find the perimeter of the given figure, if each side
is of 7 cm. answer must be 35
(1) 49 cm (2) 42 cm
(3) 56 cm (4) 35 cm.
308
PRE UPPER PRIMARY SCHOLARSHIP EXAMINATION NAVNEET : PAPE​

Answer 1

If each side is 7cm and perimeter is 35,

so, 35÷7 = 5 sides. That means it is a Pentagon.

(1) 49cm

Sol :. each side of Pentagon = 49 ÷ 5 = 9.8 cm

(2) 42 cm

Sol :. each side of Pentagon = 42 ÷ 5 = 8.4 cm

(3) 56 cm

Sol :. each side of Pentagon = 56 ÷ 5 = 11.2 cm

(4) 308 cm

Sol :. each side of Pentagon = 308 ÷ 5 = 61.6 cm

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