Math

1.) find the volume of the given pyramid. H= 7yd B= 7yd and L= 9yd
A. 147yd.^3
B. 157 yd.^3
C. 221 yd.^3
D. 441 yd.^3 *******

2. Find the volume of a square pyramid with a base length of 9 cm and a height of 4cm.
A. 324cm. ^3
B. 108cm. ^3
C. 36 cm. ^3*******
D. 152 cm. ^3

3. find the volume of the given cone. B=6 in and H=11 in
A. 320 in. ^3
B. 1244 in. ^3
C. 415 in. ^3
D. 622 in. ^3 *****

4. Find the volume of a cone with a radius of 10 mm and a height of 6 mm.
A. 628 mm. ^3
B. 600 mm. ^3 *****
C. 1884 mm. ^3
D. 1254 mm. ^3
5. find the lateral area of a cone with a radius of 7 ft and a slant height of 13 ft. use 3.14 for π and round to the nearest whole number.
A. 439
B. 324
C. 572
D. 286******

6. Find the surface area of a square pyramid with a base length of 11 cm and a slant height of 15cm
A. 472
B. 451*****
C. 781
D. 330

7. find the surface area of the cylinder. Use the diagram of the cylinder to answer the question. Use 3.14 for π and round to the nearest whole number. Radius= 8in and height= 8in
A. 2,010******
B. 402
C. 804
D. 603

8. find the volume of the cylinder. Radius= 8in and height= 8in
A. 1,608
B. 2,846
C. 6,431
D. 401*****

9. Find the volume of a rectangular prism with the following dimensions: Length= 5 mm
Base= 7 mm and the height= 3 mm
A. 142 mm
B. 105 mm ******
C. 126 mm
D. 130 mm ^3
My answers are the ones that have this sign (****)

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  1. #1. Nope -- For a pyramid, V = 1/3 Bh
    #2. ok
    #3 ok, if the base B = 6 in^2
    #4. No. pi is not 3
    #5. ok
    #6. ok
    #7. nope
    #8. nope
    #9 ok

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    👤
    oobleck
  2. can you help me with the other ones

    1. 👍
    2. 👎
  3. 1. 157
    4.) 628
    7. 804
    8. 2846
    are this correct

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    2. 👎
  4. @XOXO,
    Isn't B 175 yd^2 and not 157 yd^2?

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    2. 👎
  5. A
    B
    C
    A
    D
    A
    C
    A
    B

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    2. 👎
  6. anon babyyy is correct

    1. 👍
    2. 👎
  7. anon babyyy is right

    1. 👍
    2. 👎

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