Question

What is the area (in sq cm) of a rectangle of perimeter 48 cm and breadth 10 cm?

A) 140 B) 480 C) 240 D) 440

Answer 1

Answer:

the answer is A)140

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Answer 2

Given

Perimeter of rectangle=48 cm

Breadth=10cm

To find

Length=?

Area of rectangle=?

Solution

Let the length of rectangle be x

Perimeter of rectangle=2(L+B)

2(l+b)=48

l+b=48/2

l+10=24

l=24-10

l=14cm

Now

Area of rectangle = L×B

=14×10

= 140 cm²