The interior angles of a triangle add up to 180 degrees, meaning we can make an equation.



Hope this helps.
頑張って!
Yes u have to and as long are you do than you would be right
Answer:
10
Step-by-step explanation:
4-1=3 (length of base)
-1-1=-2 (absolute value of height is 2)
3+2+2+3=10
Answer:

Step-by-step explanation:

It will take 20 people to paint 5 walls in 52/4 = 13 minutes
<span>so time for 20 people to paint 20 walls = 4 * 13 = 52 minutes</span><span>
Hope this satisfies your query! Have a good one :)</span>