alyssa3193
alyssa3193 alyssa3193
  • 01-12-2018
  • Mathematics
contestada

A sector of a circle has a central angle of 45 . Find the area of the sector if the radius of the circle is 15 cm.

Respuesta :

wegnerkolmp2741o
wegnerkolmp2741o wegnerkolmp2741o
  • 01-12-2018

Answer:

A = 28.125 * pi cm^2

A = 88.357  cm^2


Step-by-step explanation:

Area of a sector is 1/2 r^2 theta  where theta is in radians

convert 45 degrees to radians

theta = 45 * pi/180 = pi/4

A = 1/2 * 15^2 * pi/4

A =1/2 * 225 * pi/4

A = 28.125 * pi cm^2

A = 88.357  cm^2


Answer Link

Otras preguntas

What kind of front involves three air masses of different temperatures?
What happens to particles as they are heated or cooled, Kinetic Theory of Matter?
Given f(x) = 17-x^2, what is the average rate of change in f(x) over the interval [1, 5]
An ECOREGION is defined as a large area of land or water that contains a geographically distinct assemblage of natural communities. Question 3 options: True Fal
What would you want to do with your life if money were no object
Using the equation for speed, v = d/t, find the speed of a car that travels 50 kilometers in one-half hour
Draw a stress strain curve for a ductile material indicating yield stress, uts, strain to failure.
A nurse is caring for a client experiencing hyponatremia who was admitted to the medical-surgical unit with fluid-volume overload. for which clinical manifestat
52 thousandth scientific Notation
A beta particle may be spontaneously emitted from