+37146 Volume of a sphere is 4/3 pi r^3 = 4/3 (3.14) (4^3) REMEMBER to use the RADIUS !!
= 267.9 cm^3
The second one:
You'll have to draw that one out....then break it into squares , rectangles and triangles to calculate the area
Then the last one:
V = 4/3 pi r^3 = 4/3 * 3.14 * 7.5^3 = 1766.25 in^3
+129852 Second one
The first four points form a parallelogram with a width of 6 and a height of 4.....so its area is
(6 * 4) = 24 units^2
The last three points form a triangle with a base of 6 and a height of 2
So...its area is (base * height) / 2 = 6 * 2 / 2 = 6 units^2
So.....the total area is (24 + 6) = 30 units^2
