Answer:
Step-by-step explanation:
Yes, equilateral triangles are 60 degrees unlike right angles that are 90.
Answer:the answer is 18
Step-by-step explanation:You do 9minus three then get six and then multiply six by three to get 18.
Answer:
The opposite of a number is its additive inverse. The sum of a number and its opposite is zero. (This is sometimes called the property of opposites ). a+(−a)=0.
