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
- The circumference of a circle equals the perimeter of a square of side 14. Find area of circle.
- In a circle of radius 5 cm, a point P lies outside the circle at a distance 13 cm from the centre O. Tangents PA and PB are drawn from P to the circle, tou...
- In the given diagram, point 'O' represents the center of a circle, while AB and DE are two distinct chords within the circle. The line segment OC is perpen...
- From an external point P, two tangents PA and PB are drawn to a circle with centre O and radius 5 cm. The angle between the tangents ∠APB is 60°. Find the ...
- If the angle of a sector of a circle is 450 & its radius is 14cm , find the area of this sector?
- In a circle of radius 13 cm, a chord has length 10 cm. Find: (a) the distance of the chord from the centre, (b) the angle subtended by the chord at the c...
- In a circle of radius 13 cm, a chord is at a distance 5 cm from the centre. Find the length of the chord.
- A chord of a circle is 16 cm long and its distance from the centre is 6 cm. The radius of the circle is:
- The circumference of a wheel is 39.6 cm. What is the radius of the wheel?
- In a circle, two chords AB & CD are produced at P which is outside the circle . If PA= 12 cm, AB= 10 cm , PC = 2 cm then find CD.
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)