maths

calculate the area of a sector of a circle which subtends an angle of 45° at the centre of the circle, radius 14cm

  1. 👍
  2. 👎
  3. 👁
  4. ℹ️
  5. 🚩
  1. Since the sector has an angle which is 1/8 of 360°
    its area would be 1/8 of the area of the circle.
    So...
    find the area of the circle, then take 1/8 of it.

    1. 👍
    2. 👎
    3. ℹ️
    4. 🚩
    👤
    Reiny
  2. I want answers to questions

    1. 👍
    2. 👎
    3. ℹ️
    4. 🚩
  3. The formula is central angle/360×πr^2
    Central angle=45°
    π=22/7
    r=14cm
    45/360×22/7×14×14
    Area=77cm^2

    1. 👍
    2. 👎
    3. ℹ️
    4. 🚩
  4. Answer this question. Calculate the area of the sector of a circle which substend an angle 45 degree at the centre of the circle of diameter 28cm.

    1. 👍
    2. 👎
    3. ℹ️
    4. 🚩
  5. wapdam

    1. 👍
    2. 👎
    3. ℹ️
    4. 🚩
  6. I need the solution to the question

    1. 👍
    2. 👎
    3. ℹ️
    4. 🚩
  7. I got it thanks

    1. 👍
    2. 👎
    3. ℹ️
    4. 🚩
  8. 0.125×22×14×14
    77cm²

    1. 👍
    2. 👎
    3. ℹ️
    4. 🚩
  9. I don't understand

    1. 👍
    2. 👎
    3. ℹ️
    4. 🚩
  10. I need the solution to the question

    1. 👍
    2. 👎
    3. ℹ️
    4. 🚩
  11. solution

    1. 👍
    2. 👎
    3. ℹ️
    4. 🚩

Respond to this Question

First Name

Your Response

Similar Questions

  1. Mathematics

    a paper cone has a base diameter of 8cm and a height of 3cm.calculate the volume of the cone in terms of pie and make a sketch of the cone and hence use Pythagoras theorem to calculate its slant height and calculate the curve

  2. Maths

    A sector of a circle of radius 7cm subtending an angle of 270 degree at centre of the circle is use to form a cone? (A)find the base radius of the cone. (B)calculate the area of the base of the cone.

  3. Math

    How would I calculate the area of a sector of a circle with radius 2 m that subtends an angle pi/3

  4. Maths

    The arc of a circle of radius 20cm subtends an angle of 120degree at the center.use the value 3.142 for pie to calculate the area of the sector correct to the nearest cmsquared

  1. Mathematics

    A sector of a circle of radius 7cm subtends angle 270° at the centre. Calculate a. Length of arc b. Area of sector c. Perimeter of sector

  2. Mathematics

    A sector of a circle of radius 9cm subtends angle 120 degree at the circle. Find the area of the sector. SOLUTION radius=9cm pie=22/7 titer=120 Area of sector=titer/360 x pie radius square. =120/360 x 22/7 x 9square =120/360 x

  3. Mathematics

    1) Find,in the term π the curved surface area of cone with circular base diameter 10cm and height 12cm 2)If the cone in question 1 is made of paper and the paper is flattened out into the sector of a circle, what is the angle of

  4. Mathematics

    An arc of a circle of radius 10cm subtends an angle 120° at a center a circle. Calculate the area of the sector OAB

  1. maths

    A sector of a circle of a radius 6cm subrends angle of 105 at the centre of a circle.calculate the perimeter of the sector and the area of the sector?

  2. Mathematics

    A sector of a circle radius 8cm subtends and and angle 90°a at the centre of a circle. If the sector is folded without overlap to form the curved surface of a cone, find the 1. Base radius 2. Height 3. Volume of the cone.

  3. math

    An angle of 1.8 radians at the center of the circle subtends an arc of length 23.4cm. Find: (a) The radius of the circle (b) The area of the sector enclosed by the arc and the radii.

  4. mathematics

    a sector with an angle 110 degree at the centre of a circle is cut away from a circular piece of paper of radius 70cm,the remaining part is folded to form a cone, find: a:vertical angle of the cone b:angle of the sector

View more similar questions or ask a new question.