Question

the perimeter of the triangle is 128 m the length is 4 more than 5 times breadth the values of length and breadth respectively are

Answer 1

Answer:

Correct option is

C

143

Let breadth of the rectangle be 'b' cm.

So length of the rectangle will be 'b+2' cm.

Now

Perimeter =48

2(l+b)=48

2(b+2+b)=48

2b+2=24

2b=22

b=11 cm

l=b+2=13 cm

Then,

Area of the rectangle =lb

=13×11

=143 cm

2

Answer 2

Answer:

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Step-by-step explanation:

correct option is

c

143

Let breadth of the rectangle be 'b' cm.

So length of the rectangle will be 'b+2' cm.

Now

Perimeter =48

2(l+b)=48

2(b+2+b)=48

2b+2=24

2b=22

b=11 cm

l=b+2=13 cm

Then,

Area of the rectangle =lb

=13×11

=143 cm

2