Triangle has 3 equal sides so it is equilateral triangle.
<A = <B = <C = 60 degrees
Answer
C. 60°
Answer:
We start with 0 + 40.
1. 0 + 40
2. 1 + 39
3. 2 + 38
4. 3 + 37
.....
keep going....
.....
19. 18 + 22
20. 19 + 21
21. 20 + 20
There are 21 pairs of whole numbers that have a sum of 40.
Step-by-step explanation:
hope this helps :)

- Following the order of operations, we do parenthesis first.

- Multiply out the value against the parenthesis.

- This leaves us with 20 over 20. 20 goes into 20 only 1 time, so our final answer is 1.