2 years ago

Calculate the measure of arc AC if the measure of arc CD is 170 degrees and arc AB is 80 and AB||CD.

Mathematics

1 answer:

CaHeK987 [17]2 years ago

5 0

Answer:

AC = 55°

Step-by-step explanation:

In this geometry, arcs AC and BD have the same measure. The sum of the parts of arc CD will total the measure of CD.

AC + AB + BD = CD

2AC +80 = 170

AC = 110/2 = 55

The measure of arc AC is 55°.

You might be interested in

Which one is the factor?

dalvyx [7]

A: I think that a factor

6 0

3 years ago

in 2014 the attendance at jefferson schools fall festival was 650 in 2015 the attendance was 575 what was the percent change

Gnoma [55]

There was 11.54% decrease in attendance.

Step-by-step explanation:

Attendance in 2014 = Old value = 650

Attendance in 2015 = New value = 575

Change = New value - Old value

Change = 575 - 650 = -75

The negative sign indicates a decrease in attendance.

Decrease percentage = $\frac{Change}{Old\ value}*100$

$Decrease\ percent=\frac{75}{650}*100\\\\Decrease\ percent=\frac{7500}{650}\\\\Decrease\ percent=11.538\%$

Rounding off to nearest hundredth

Decrease percent = 11.54%

There was 11.54% decrease in attendance.

Keywords: percentage, subtraction

Learn more about subtraction at:

#LearnwithBrainly

4 0

2 years ago

Read 2 more answers

Thank you all for your help

kotegsom [21]

I didn't do anything but yay

8 0

3 years ago

Read 2 more answers

Please help.A teacher asked her pupils what their favourite school subject was.

julia-pushkina [17]

Yes this is simple just what is the angle of the whole circle and just subtract from that number.

3 0

2 years ago

Please guys help me. I will give you the brainliest if you give me the correct answers.

andrey2020 [161]

Answer:

vbvcfvbnbvcxcvbnvcxvbnmbvcvbvfdfgbhnbgvfgvbnbgfghbnbgvfgvbnbgfgbngfgbgfgfgfgfgfgfgfgfgfgfgrrrdrd

Step-by-step explanation:

3 0

2 years ago