Asection representing 45% of a circle graph has an angle measure of degrees.

162 degrees

Step-by-step explanation:

Since a circle measures 360 degrees, the section that is 45% of a circle will measure 45% of 360 degrees.

We simply calculate 45% of 360. 45% means 45 over 100. So we multiply this by 360:

Hence, "a section representing 45% of a circle graph has an angle measure of 162 degrees"

162 degrees

Step-by-step explanation:

We know that there is section on a circle graph which represents 45% of the circle and we are to measure the angle in degrees it represents.

Since one complete circle has 360 degrees so we will wind 45 percent of 360 to find the angle measure.

Angle represented by 45% of a circle =

Therefore, 45% of a circle represents 162 degrees.

nlgqer

step-by-step

second option

step-by-step explanation:

the measures of a triangle equal 180. use that to find x.

2x+3x+4x=180

9x=180

9x/9=180/9

x=20

now you know x, you know angle a is 40°, angle b is 60°, angle c is 80°.

because angle a is 40°, the first option doesn't work.

because angle b is 60°, the second option does work.

when you add angle a and b, you get 100°. complementary means it equals 90°, so the third option doesn't work.

when you add angle a and c, you get 120°, which is not 100.