maths --plse help me..

posted by .

Find the difference of the areas of two segments of a circle formed by a chord of length 5cm subtending an angle of 90degree at the centre.

  • maths --plse help me.. -

    a1 = 1/2 r^2 (θ-sinθ) = 25/2 (pi/2 - 1)
    a2 = pi r^2 - a1 = 25pi - 25/2 (pi/2 - 1) = 25/4 (3pi + 2)

    a2 - a1 = 25/2 (pi+2)

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. math

    The equation of a circle with centre O(0,0) is x^2+y^2=40. The points A(-2,6) and B(-6,-2) are endpoints of chord AB. DE right bisects chord AB at F. a)Verify that the centre of the circle lies on the right bisector of chord AB. b)Find …
  2. Maths

    AB is a chord with centre O and radius 4 cm. AB is of length 4 cm and divides the circle into two segments. Find d area of minor segment. A chord PQ of length 12cm suntends an angle of 120 degree at the centre of a circle. Find the …
  3. Copperbelt international college

    A chord PQ of length 5.6cm divides a circle of radius 3.5cm into two segments.calculate the difference in areas between major and minor segment in the circle of chord PQ.
  4. maths

    A chord subtends an angle of 68 degree at the centre of a circle of radius 200 mm.Find the length of the chord.
  5. maths -circle

    A chord of length 10 cm divides a circle of radius 5root2 cm in two segments. find the area of minor segment.
  6. maths

    A chord is 2cm from the centre of a circle. if the ratius of the circle is 5cm, find the length of the chord
  7. Math

    A chord subtends an angle of 68° at the centre of a circle of radius 200mm. Find the length of the chord.
  8. math circle geometrics

    The distance of a chord from the centre of a circle of radius 7cm is 5cm,what is the length of the chord to the nearest centimetre?
  9. MATH

    LENGTH OF A CHORD IS 8CM,RADIUS IS 5CM CALCULATE THE DISTANCE OF THE CHORD FROM THE CENTRE OF THE CIRCLE
  10. math

    ) A chord AB of length 13cm is drawn in a circle centre O at a distance of 5cm from O. Find the radius of the circle. Stop at 1 d.p.(b) TA and TB are tangents to a circle centre O. TOC is a straight line and <ATB = 56°. Calculate …

More Similar Questions