Answer:
16.) 35%
17.) 56%
18.) 5%
Step-by-step explanation:
Look at the denominator. How many times does it go into 100? For example, for the first one, 20 goes 5 times into 100. So I would multiply 7 and 5, and I would get 35.
120 square inches because a circle is 360 degrees so there will be 6 60 degree sections in it and each 60 degree section needs 20 square inches to cover it so 6 x 20= 120
Use the sin function to solve for the central angle.
Chord length = 2Rsin(c/2)
where
chord length =4.5 feet
radius = 5 feet
C= central angle
Rearrange the formula to get the central angle and substitute all the given values
Central angle = 53.49 degrees
Explanation is in the file
tinyurl.com/wpazsebu