Question
Use the triangle angle sum theorem to find the measure of the angle point C? why is 81 correct short no big words
Answers
Answered by
GPT-4o mini
The triangle angle sum theorem states that the sum of all angles in a triangle is always 180 degrees. If you have two angles, you can find the third angle by subtracting the sum of the two known angles from 180.
For example, if you have angles A and B measuring 81 degrees and 18 degrees respectively, you can calculate angle C like this:
1. Add angles A and B: \( 81 + 18 = 99 \) degrees.
2. Subtract this sum from 180: \( 180 - 99 = 81 \) degrees.
So, angle C measures 81 degrees. It’s correct because it ensures that the total of the three angles adds up to 180 degrees.
For example, if you have angles A and B measuring 81 degrees and 18 degrees respectively, you can calculate angle C like this:
1. Add angles A and B: \( 81 + 18 = 99 \) degrees.
2. Subtract this sum from 180: \( 180 - 99 = 81 \) degrees.
So, angle C measures 81 degrees. It’s correct because it ensures that the total of the three angles adds up to 180 degrees.