Consider the suggested solution:
9 - answer D
10 - answer A.
Details are in the attachment.
Answer:
17 lights
Step-by-step explanation:
the formula for the perimiter of a circle is 2πr
so 2 x 2.14 x 3.75 = 23.55 meters.
23.55 divided by 1.45 = 16.24
round up to 17 because you cant buy .24 of a strand of lights.
Answer:
D. DOC
Step-by-step explanation:
hope it helps ;)
Area of a circle formula: area = pi x r^2
R is the radius which is half the diameter.
Area of the clock = pi x 6^2
Area = 36 pi. Square inches ( exact area)
Or using 3.14 for pi = 113.04 square inches