Question

A wire of length 64cm is bent into a rectangle of length 20cm, find its area

Answer 1

Answer:

Step-by-step explanation:

Length of wire = Perimeter of rectangle

= 2( l+ b)

= 2( 20 + b)

= 40+ 2b

According to the question,

40+2b = 64

2b = 24

b = 12

Breadth = 12cm

Area of rectangle = l*b = (20*12) cm square= 240 cm squae

Answer 2

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