Sphere and Surface Area

Topics: Sphere, Circle, Length Pages: 2 (417 words) Published: May 2, 2014
RIGHT
Find the area of a square with a side length of 4 inches....C Find the volume of concrete needed to make a circular patio that has a radius of 24 feet and is 8 feet thick. Use 3.14 for pi. If necessary, round the answer to the nearest cubic foot....C B

Write the equation of the circle with the given center and radius. Then graph the circle. center: (–1, –3) radius: 6.....B
A
The volumes of 2 similar solids are 27 and 125 The surface area of the larger solid is 250 What is the surface area of the smaller solid? Round your answer to the tenths place....C A regular nonagon has a side length of feet. A similar nonagon has a side length of 5 feet. What is the ratio of the first nonagon's perimeter to the second nonagon's perimeter? What is the ratio of the first nonagon's area to the second nonagon's area?C A polyhedron has 20 faces, and all of them are triangles. If the polyhedron has 30 edges, how many vertices does it have?B A circle has an area of 153.86 square inches. Using 3.14 for pi, find the radius and circumference of the circle. Round your answer to the nearest hundredth when necessary.....A C

D

What is the shape of the intersection of a sphere and a horizontal plane?D A
A

You are ordering your school pictures. You decide to order one 8-by-10-inch, two 5-by-7-inch, and four 2.5-by-3.5-inch photos. Are any of these sizes similar to each other? Explain.....B Name the left (top) circle. Also, name a chord, a radius, and a diameter of that circle. Given that AF = 28 and XE = 9, find B

Use the diagram, which is not drawn to scale, to find AD if AC = 24 and BC = 12....B D

A
D

D
21 22 25
The variables r and s represent the lengths of the legs of a right triangle, and t represents the length of the hypotenuse. The values of r, s, and t form a Pythagorean triple. Find the value of r. s = 35 t = 37..........B Duckpin bowling is similar to ten-pin bowling, except the ball and pins are smaller and the ball has no holes...
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