Question
Find out the circumference of a sector whose radius is 7 cm and it makes the angle of 45° at the centre.
Radius = AO = BO = 7 cm Length of arc AB = Circumference of circle x angle of sector/360 = 2 πr x 45/360 = 2 x 22/7 x 7 x 45/360 = 5.5 cm Circumference of sector= arc AB + 2 x (radius) = 5.5 + 7 + 7 = 19.5cmMore Circle Questions
- The circumference of a circle is 176 cm while the length of the rectangle is 9 cm more than the radius of the circle. Find the perimeter of the rectangle i...
- Two circles of radii 15 cm and 10 cm touch each other externally at a point A. PQ is the direct common tangent of those two circles of centers O ₁ and O ₂ ...
- In a circle of radius 10 cm, a chord has length 16 cm. Find the distance of the chord from the centre of the circle.
- If the numerical value of the area of a circle is seven times that of its circumference, determine the diameter.
- Find the area of largest square that can be inscribed in a circle of radius ‘r’.
- The area of a sector of a circle is 88cm² and the angle of the sector is 60º. Find the radius of the circle.
- 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 square has an area of 2,500 cm². Find the area of a circle whose radius is (2/5)ᵗʰ of the length of the square’s side. (Take π = 3.14)
- The circumference of the circle is 154 cm while the length of the rectangle is 15 cm more than the radius of the circle. Find the perimeter of the rectangl...
- The circumference of the circle is 88 cm while the length of the rectangle is 5 cm more than the radius of the circle. Find the perimeter of the rectangle ...
Relevant for Exams:
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
