Question : Find the area of the sector of a circle with a radius of 4 cm containing an angle of 30°.
Option 1: 7.186 cm2
Option 2: 6.186 cm2
Option 3: 4.186 cm2
Option 4: 5.186 cm2
Latest: SSC CGL preparation tips to crack the exam
Don't Miss: SSC CGL complete guide
New: Unlock 10% OFF on PTE Academic. Use Code: 'C360SPL10'
Correct Answer: 4.186 cm 2
Solution : Radius = 4 cm Angle = 30° Area = $\frac{ \theta}{360°}×\pi r^2$ ⇒ Area = $\frac{30}{360}×3.14 \times 4^2$ ⇒ Area = $3.14 \times \frac{4}{3}$ ⇒ Area = $4.186$ cm 2 The area of the sector of a circle with a radius of 4 cm and an angle of 30° is 4.186 cm 2 . Hence, the correct answer is 4.186 cm 2 .
Candidates can download this ebook to know all about SSC CGL.
Admit Card | Eligibility | Application | Selection Process | Preparation Tips | Result | Answer Key
Question : Find the area of the sector of a circle with a radius of 5 cm and an angle of 60° (rounded off to one decimal).
Question : The area of a sector of a circle is 308 cm2, with the central angle measuring 45°. The radius of the circle is:
Question : The area of a sector of a circle is 110 cm2 and the central angle of the sector is 56°, what is the circle's radius? (Take $\pi=\frac{22}{7}$)
Question : A sector of a circle of radius 10 cm is formed at a 60° angle at the centre. What will be its area $($take $\pi=3.14)?$
Question : The area of a sector of a circle of radius 28 cm is 112 cm2. Find the length of the corresponding arc of the sector.
Regular exam updates, QnA, Predictors, College Applications & E-books now on your Mobile