Question

Length and breadth of $4$ different rectangles a, b, c and d are given. Which among them will have the largest area?

• A. Length $=12$ units
  Breadth $=7$ units
• B. Length $=17$ units
  Breadth $=5$ units
• C. Length $=23$ units
  Breadth $=3$ units
• D. Length $=18$ units
  Breadth $=4$ units

Answer 1

The correct option is B Length $=17$ units

Breadth $=5$ units
We know, area of a rectangle is the product of its length and breadth.

Area $=l\times b$

For rectangle a;
Length $=12$ units
Breadth $=7$ units
Therefore, area $=12\times 7=84$ square units

For rectangle b;
Length $=17$ units
Breadth $=5$ units
Therefore, area $=17\times 5=85$ square units

For rectangle c;
Length $=23$ units
Breadth $=3$ units
Therefore, area $=23\times 3=69$ square units

For rectangle d;
Length $=18$ units
Breadth $=4$ units
Therefore, area = $72$ square units

Thus rectangle 'b' has got the greatest area.