Question

If $l\&b$ are the dimensions of any rectangle, match the following with their respective perimeters.

• A. $16$ units
• B. $26$ units
• C. $50$ units
• D. $40$ units

Answer 1

If the sides of a rectangle are $l\&b$ units,
Then it's perimeter is given by $2\times (l+b)$
A. $l=5,b=3$
Perimeter $=2\times (5+3)=2\times 8=16$ units

B. $l=8,b=5$
Perimeter $=2\times (8+5)=2\times 13=26$ units

C. $l=15,b=10$
Perimeter $=2\times (15+10)=2\times 25=50$ units

D. $l=12,b=8$
Perimeter $=2\times (12+8)=2\times 20=40$ units