Question 978298
Hi there,
Full formula is:
Angle/360 = length of arc/Pi x diameter = area of sector/Pi x r^2
................
We will use the first two
Angle/360 = length of arc/Pi x diameter
...
Angle/360 = 70/Pi x 112 (diameter = 2 x r = 2 x 56)
Cross multiply
Angle x Pi x 112 = 70 x 360
Angle = (70 x 360)/(Pi x 112)
Angle = 25200/351.858
Angle = 71.6 degrees.
Hope this helps:-)