Sounds like rearranging to me:
P=2(a+b) -- expand brackets
P=2a+2b -- subtract 2a
P-2a=2b -- divide by 2
b=(P-2a)/2
Answer:
the answer is a. scales triangle
Step-by-step explanation:
21^2 + 12^2= 28^2
441 + 144<784
Simple add them all 2+7+3+7+9 is 28 then divide 28 by the amount of numbers (5) to get 5.6 or if you are rounding to the nearest number 6... Hope this helped ;)
The picture below explains how to get your answer
hope it helps :)
Answer:
rectangle
Step-by-step explanation:
