Question
In a circle AB is diameter & C is a point on circumference such that AC = 8 cm & BC = 15 cm then find the area of circle ?
As AB is diameter So Angle ACB = 90 degree ; Hence in right angle Δ ABC, AB 2 = AC 2 + BC 2 = 82 + 152 = 64 + 225 = 289 AB = 17 cm = 2R So R = 17/2 cm Hence, Area of circle = πR 2 = π (17/2) 2 = 72.25π cm 2 More Circle Questions
- If the angle of a sector of a circle is 450 & its radius is 14cm , find the area of this sector?
- A rhombus has diagonals in the ratio 4:3 and an area of 2,400 cm². A circle is drawn using the smaller diagonal of the rhombus as its diameter. What is the...
- If the radius of a circle is 15 cm, then which of the following is true regarding the length of the chord (L)?
- A circular sector has a radius of 14 cm and an area of 154 cm². What is the angle formed at the center by the arc? (Take π = 22/7)
- Find the area of largest square that can be inscribed in a circle of radius ‘r’.
- A semicircle has a radius of 7 cm. What is the perimeter of the semicircle?
- If the angle of a sector of a circle is 300 & its radius is 7cm , find the area of this sector?
- Find out the circumference of a sector whose radius is 7 cm and it makes the angle of 45° at the centre.
- In a circle of radius 10 cm, a chord AB has length 10√3 cm. Find: (i) the distance of the chord from the centre, and (ii) the measure of ∠AOB, where O is...
- A rhombus has an area of 2,592 cm² and its diagonals are in the ratio 5:3. A circle is drawn with the shorter diagonal of the rhombus as its diameter. Calc...
Hey! Ask a query
Please enter email id
The email must be a valid email address.
Please enter Mobile Number
Please enter valid Mobile Number
Please enter your Doubt
Think You're Ready for RBI Grade B?
RBI Grade B 2026 Phase 1 Memory Based Paper
- 200 Questions with Detailed Solutions
- Section-wise Coverage (GA, English, Quant & Reasoning)