sector and diameter

posted by .

Find the area of a sectorwith a central angle 0f 190degree and a diameter of 5.1cm.

Can someone please help?

  • sector and diameter -

    Ac = pi*r^2 = 3.14*(5.1/2)^2 20.42 cm^2
    = Area of circle.

    As = (190/360)*20.42 = 10.78 cm^2. = Area of sector.

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. trigonometry

    please check my answers. 1.Find the area of the sector of a circle. r=11.8cm, theta-pi/7 radians I got 31.2cmsquared 2.Find the radius of a circle in which a central angle of pi/6radian determines a sector of area 76square meters. …
  2. geometry

    What is the area of a sector where n= the measure of the central angle, r=radius, and d=diameter. n=90 degrees, d=18cm
  3. geometry

    Find the area of a sector with a central angle of 190° and a diameter of 5.1 cm. Round to the nearest tenth. Please Help I just don't get it
  4. trig

    a. A sector that has been cut out of circular plastic sheet which has a circumference of 12.31 m. If the central angle of the sector is 1/4 of a revolution, find the area of the sector.
  5. pre-calc

    Find an angle between 0 and 2ð that is coterminal with the given angle. -8pi/3 A sector of a circle has a central angle of 60°. Find the area of the sector if the radius of the circle is 3 mi.
  6. calculus

    if a snowball melts so that its surface area decreases at a rate f 1cm^2/min, find the rate at which the diameter decrease when the diameter is 10cm?
  7. math

    a circular pizza box logo has a sector with a central angle of 80 degrees and a diameter of 16 inches. Find the area of this sector
  8. Geometry

    The circumference of a circle is 20 pi cm. Find diameter, radius, and area of the disk, the length of an arc of 90 angle and area of a 90 angle sector. Answer in terms of pi. d= ___ r= _____, disk area= _______ arc length =______, …
  9. math

    Find the volume of the cone to be constructed from a sector having a diameter of 72 cm and a central angle of 210 
  10. geometry

    What is the area of a sector with a central angle of 210 degrees and a diameter of 4.6 m?

More Similar Questions