B. There are 7 red, 8 green, and 6 blue marbles in the bag. Kate is going to
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Answer:
The surface area of ball is 400π sq.cm
First find the area of the triangle (on top) and then subtract the area of the circle (on bottom) since the triangle is Equilateral, you can assume that the height can be found by using the 30 60 90 angle relationship. To find the radius of the circle, divide the height by 2.
