Correct Answers: | |

Wrong Answers: | |

Unattempted: |

### Question 1

The diagonal and one side of a rectangle are 13 m and 5 m. What is the area of the rectangle?

### Question 2

The length and breadth of a rectangle are respectively increased by 13% and 10%. What is the % increase in the area?

### Question 3

A gun is fired towards a circular board consisting of two concentric circles of radii 12 and 3 cm. If each bullet is able to hit the board, what is the probability that it will strike the ring, i.e., the area between the inner and outer circles?

**A**

${15/16}$.

**B**

${5/7}$.

**C**

1/2.

**D**

${15/31}$.

**Soln.**

**Ans: a**

The area of the ring is equal to the difference of the areas of the two circles. π($12^2 - 3^2$) = 135π sq. cm. The total area is π × 12^{2} = 144π. The probability of hitting the ring is ${135π}/{144π}$ = ${15/16}$.

### Question 4

The diagonal and one side of a rectangle are 5 m and 3 m. What is the perimeter of the rectangle?

### Question 5

The length of a square is increased by 1%, what is the % increase in area?

This Blog Post/Article "Areas Quiz Set 005" by Parveen (Hoven) is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.

Updated on 2017-05-17.