math questions?

Question

1: Find the lateral area of a rectangular prism 5 feet wide, 15 feet long, and 10 feet high.
300 sq. ft
350 sq. ft
400 sq. ft
450 sq. ft


2: Find the lateral area of a cube with each edge 3.4 inches.
46.24 sq. in
38.24 sq. in
45.5 sq. in
40.25 sq. in


3: Find the lateral area of a triangular prism 12.5 feet high and edges 3.4 feet, 4.5 feet, and 5.6 feet.
155.78 sq. ft
163.54 sq. ft
165.55 sq. ft
168.75 sq. ft


4: Find the lateral area of a cylinder with radius 4.7 inches and altitude 20.3 inches.
556.88 sq. in
600 sq. in
703 sq. in
643.56 sq. in


5: Find the lateral area of a cone with radius 3 inches, altitude 4 inches, and slant height 5 inches.
47.1 sq. in
49.6 sq. in
45.3 sq. in
50.1 sq. in


6: Find the surface area of a baseball with diameter 3 inches.
113.04 sq. in
77.9 sq. in
45.32 sq. in
28.26 sq. in


7: Find the volujme of a piece of lumber 4" x 6" x 24'.
2 cu. ft
4 cu. ft
3 cu ft.
6 cu. ft.


8: Find the volume of a rectangular prism 8.5' X 13.6' X 9.5'.
1105.6 cu. ft
1098.2 cu. ft
1075.44 cu. ft
989.3 cu. ft


9: Find the volume of a cylindrical can 2.5" in radius and 6" tall.
117.75 cu. in
120.33 cu. in
105.85 cu. in
123.45 cu .in


10: Find the volume of a cone with radius 5 inches, altitude 12 inches, and slant height 13 inches.
323 cu. in
330.12 cu in
314 cu. in
311.31 cu. in


11: Find the volume of a square pyramid with each side of its base 6 inches and altitude 4 inches.
46 sq. in
48 sq. in
54 sq. in
39 sq. in


12: Find the volume of a sphere with radius 9.6 inches.
3679.6 cu. in
3557.2 cu. in
3706 cu. in
3893 cu. in

Answer 1

You have 13 Math postings with a total of 210 questions in them so far. It's good to see at least this time they are split into two postings with #1-12 here and #13-24 later on!

I'm getting my math in by adding up your questions! How are you getting yours?

Good luck with your exams.

Answer 2

1) LA = ph perimeter of base is 40. LA = 40 (10) = 400

Use same formula for triangular prism and cylinder (use circumference for perimeter).

LA of cone = 1/2 pl where p = perimeter (circumference) and l = slant height.


V of prism = Bh where B is area of base and h = height

V of pyramid = 1/3 Bh

V of sphere = 4/3 pi r^3

Answer 3

I see your mix up - A = PiR^2 right? Well, Area = Pi (radius squared), where you put the radius as 48. The Diameter is 24 cm, right? Well, in the formula, radius is only half of the diameter, so you should be using 12^2, not 48^2 Your formula should look like this: Area = Pi(3.14) * 12^2 That'll give you the right answer.

Answer 4

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