Since the surface is 3 feet wide around the pool add 6 feet to both dimensions ( 3 feet x 2 = 6).
12 ft + 6 ft. = 18 feet
15 ft + 6ft. = 21 feet
Perimeter = 2L + 2W
Perimeter = 2(18) + 2(21)
Perimeter = 36 + 42
Perimeter = 78 feet.
Answer:
Step-by-step explanation:
C
It would be: 360- (101+133+76)
360-310 = 50 degree
Answer:36 marbles
Step-by-step explanation:1/2*3=3/6
1/3*2=2/6 3/6+2/6=5/6 6 marbles = 1/6 of the bag 6*6=36
