Math, asked by pavan197, 1 year ago

the central hall of a school is 18m long and 12.5m wide. a carpet is to be laid on the floor leaving strip 50cm wide near the walls,uncovered. find the area of the carpet and also the uncovered portion

Answers

Answered by nischala1
27
Given,
Length of the hall=18m
Breadth of the hall=12.5m
Width of the strip= 50cm=1/2m
Length of inner rectangle= 18-(1/2+1/2)=17m
Breadth of inner rectangle=12.5-(1/2+1/2)=11.5m
Area of the strip= (Area of outer figure)-(Area of inner figure)
=18×12.5-17×11.5
=225-195.5
=29.5 m^2
Area of the carpet= 195.5m^2
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