Answer:
correct answer is : To determine to measure of the unknown angle, be sure to use the total sum of 180°. If two angles are given, add them together and then subtract from 180°. If two angles are the same and unknown, subtract the known angle from 180° and then divide by 2.
The square root of a prime number (11) is irrational
Answer:
-4.5
Step-by-step explanation:





Step-by-step explanation:
