FABCD is a rectangle whose area is 108 m² and its length is 12m, then the area of the square AEFC
B
a) 15 m
b) 225 m2
c) 125 m2
d) None
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Given : ABCD is a rectangle whose area is 108 m² and length is 12m
To Find : area of the square AEFC
Solution:
Area of rectangle = length * breadth
area = 108 m²
length = 12 m
=> 12 * breadth = 108
=> breadth = 9 m
diagonal of rectangle AC = √length² + breadth²
= √12² + 9²
= √225
Area of square AEFC = AC² = (√225)² = 225 m²
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