Question

the area of a rectangle is 650cm2 and its width is 13cm. find the perimeter of the rectangle. also, calculate its area if the length of the rectangle is 15% more than its width

Answer 1

given width (b) = 13 cm

area of rectangle = 650 cm ^2

length × width = 650 cm^2

length × 13 = 650

length = 50 cm

perimeter of rectangle

=2 (length+width )

=2(50 + 13 )= 2 × 63 =126 cm

given , calculate area if length is 15% more than its width

given breadth = 13 cm

so now length will be = 13 + 15% of 13

= 13 + 1.95

=14.95 cm

new area = breadth × new length

= 13 × 14.95 = 194.35 cm^2

therefore,
area of rectangle=194.35cm^2
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Your answer: p=126cm , A=194.35 cm^2
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