First do 10x7 =70
Since there’s 4 sides with this measure mentally do 70x8=560
560
10x8.7=87
87+560=647
647sq feet
Using PEMDAS, You know that you have to multiply first so 3*2 is 6. Than you have to add 6+4 which gives you 10... So there for 10 is your answer....
None 3 * 66 = 198
ALL triangles have a total degree measure of 180 degrees
Okay , wheres the questions at tho...?
Answer:
R=12 is the solution
I don't know how to explain but it needs to be 20 characters
