Question : The circumference of a circle is 220 cm. What is the area of that circle?
Option 1: 3850 cm2
Option 2: 4550 cm2
Option 3: 2850 cm2
Option 4: 4650 cm2
New: SSC MTS Tier 1 Answer key 2024 out
Don't Miss: Month-wise Current Affairs | Upcoming Government Exams
New: Unlock 10% OFF on PTE Academic. Use Code: 'C360SPL10'
Correct Answer: 3850 cm2
Solution : The circumference $C$ of a circle, where $r$ is the radius of the circle. $C = 2 \pi r$ Given that the circumference $C$ is 220 cm. So, $r = \frac{C}{2 \pi} = \frac{220}{2 \pi} =35$ cm The area $A$ of a circle, $A = \pi r^2$ Substituting r = 35 cm into the formula, $A = \pi (35)^2 = 3850$ cm2 Hence, the correct answer is 3850 cm2.
Application | Cutoff | Selection Process | Preparation Tips | Eligibility | Exam Pattern | Admit Card
Question : The breadth of a rectangle is $\frac{4}{5}$th of the radius of a circle. The radius of the circle is $\frac{1}{5}$ of the side of a square, whose area is 625 cm2. What is the area of the rectangle if the length of the rectangle is 20 cm?
Option 1: 150 cm2
Option 2: 600 cm2
Option 3: 100 cm2
Option 4: 80 cm2
Question : If the diameter of a circle is 14 cm, find the area of the sector of the circle whose central angle measures $60^{\circ}$.
Option 1: 18.12 cm2
Option 2: 25.66 cm2
Option 3: 38.12 cm2
Option 4: 21.66 cm2
Question : What is the area of the lateral surface of a right circular cylinder, If the circumference of the base is 22 cm and its height is four times its radius?
Option 1: 388 cm2
Option 2: 308 cm2
Option 3: 408 cm2
Option 4: 288 cm2
Question : The area of a circle is 1386 cm2. What is the radius of the circle? [Use $\pi=\frac{22}{7}$ ]
Option 1: 21 cm
Option 2: 7 cm
Option 3: 14 cm
Option 4: 18 cm
Question : When a wire is bent in the form of a square, then the area enclosed by it is 5929 cm2. If the wire is bent into the form of a circle, then what will be the area enclosed by the wire?
Option 1: 7546 cm2
Option 2: 8542 cm2
Option 3: 7632 cm2
Option 4: 6954 cm2
Regular exam updates, QnA, Predictors, College Applications & E-books now on your Mobile