1) L×W 12×12=144
2) 12+12+12+12=48
3) L×W×H 5×5×5= 125
5) B×h/2 12×9=108/2=54
Answer:
39
Step-by-step explanation:
the first three call 3, making it 3*3, then each of them will get 3 more, making it 3+(3*3)+(3*3*3),3+9+27, 39
Answer:
3/4 hour or 45 minutes
It will take 0.75 hours or 45 minutes or 2700 seconds to paint one wall according to the rate we're given.
:)
For each of the problems, twice the angle formed by the chords is equal to half the sum of the angles of the arcs.
So, for the first problem, we have

, so

.
For the second,

, so

.
For the last problem,

, so

.
Feel free to comment below if you have any questions!