The table below shows the amount of money it costs sarah to perform her craft demonstration based on how much material
is required for each attendee.
number of people attending
cost
..
$15
$18
$20
$25
.
10
15
sarah spends a total of $60. based on the information in the table, how many people attended the craft demonstration?
o
o
20
30
50
70
o
what's the answer?

B) Third angle  80°.

Step-by-step explanation:

Given  : Orlando is measuring the angles of a triangle. He measures the first two angles and gets 30° and 70°.

To find : What should be the measure of the third angle.

Solution : We have given a triangle

One angle of triangle = 30° .

Second angle of triangle = 70°.

Let the third angle = x .

By the angle sum property : Sum of all the angle of a triangle is 180°.

Then, 30° + 70° + x = 180.

100 ° + x = 180°.

On subtracting both sides by 100

x = 180 - 100.

x = 80 degree.

Therefore, B) Third angle  80°.