Aptitude : : Area Questions & Answers
- The diagonals of a rectangle is √41 cm and its area is 20 sq. cm. The perimeter of the rectangle must be:
A. 9 cm
B. 18 cm
C. 20 cm
D. 41 cm
- If the length of the diagonal of a square is 20 cm, then its perimeter must be :
A. 10√2 cm
B. 40 cm
C. 40√2 cm
D. 200 cm
- The area of a square field is 69696 $cm^2$. Its diagonal will be equal to
A. 313.296 cm
B. 353.296 cm
C. 373.296 cm
D. 393.296 cm
- What will be the length of the diagonal of that square plot whose area is equal to the area of a rectangle plot of length 45 m and breadth 40 meters?
A. 42.5 m
B. 60 m
C. 75 m
D. 80 m
- The length of a rectangle is halved , while its breadth is tripled , what is the percentage change in area?
A. 40%
B. 50%
C. 60%
D. 70%