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A square room is 4m.the area …

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A square room is 4m.the area of its four walls is 80sq.m. find the of its floor

Posted by Kittu Bharti 6 years, 1 month ago

CBSE > Class 10 > Mathematics

1 answers

Yogita Ingle 6 years, 1 month ago

Height of the sq. room = 4m

Area of 4 walls = 80 sq. m

perimeter × height = 80

4 × side × 4 = 80

side × 16 = 80

side = 80/16

= 5 m

Now ,

Area of its floor = (side)²

= (5)²

= 25 sq. m

Hence, The area of the floor of the sq. room is 25 sq m .

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