JHgabybark JHgabybark
  • 03-04-2017
  • Mathematics
contestada

If a circle has circumference 10 pi cm, then an arc with measure 90 degree has length 5 pi cm true or false

Respuesta :

wolf1728
wolf1728 wolf1728
  • 05-04-2017
If circumference = 10 * PI
then a 90 degree central angle will "sweep out" one fourth of the circumference or 10 PI / 4 = 2.5 PI
So it is false.


Answer Link

Otras preguntas

All light rays parallel to the optical axis of a concave mirror are: refracted. reflected through the focal point. diffused. incandescent.
What are the three types of family.​
There are 97 students in South High School. South High School offers only Chinese and Spanish. There are 5 more students in Chinese than in Spanish, and every s
Jayne Stopped to get gas before going on a road trip the tank already had 4 gallons of gas in it which equation relates the total amount of gasoline in the tank
Suppose x and y are distances of object and image respectively from a mirror. What shall be be the shape of the graph between 1/x and 1/y for a concave mirror ?
All light rays parallel to the optical axis of a concave mirror are: refracted. reflected through the focal point. diffused. incandescent.
scientist wants to estimate the puffin population on puffin island
A motor car tyre contained a fixed mass of air at 27 °C. Its pressure was 220 kN m2 above atmospheric pressure. After a 60-minute drive, the air pressure rose t
Can someone explain me this please Consider a space shuttle which has a mass of about 1.0 x 105 kg and circles the Earth at an altitude of about 200.0 km. Calc
What is the difference of the means of the distributions?