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Mathematics 12 Online
OpenStudy (anonymous):

A cone has a diameter 8 iin. and height 14in. A rectangular prism is 6 in. by 4in. by 10 in. A square pyramid has base edge 8in and height 12 in. What are the volumes of the three figures in order from least to greatest. A. cone, prism,pyramid B. prism, cone, pyramind C. pyramid, cone, prism D. prism, pyramid, cone

OpenStudy (anonymous):

3. what is the diameter of a sphere whose surphace area is 100 pi m ^2 ? A.5m B.10m C.5 pi m D.25 pi m

OpenStudy (anonymous):

CA?

OpenStudy (anonymous):

yea

jhonyy9 (jhonyy9):

so do you know the needed formule of volume to calculi it ?

OpenStudy (anonymous):

no

jhonyy9 (jhonyy9):

but you have learned these formuls ,yes ?

OpenStudy (anonymous):

i think

jhonyy9 (jhonyy9):

Volum of cone = area of base time height divide by 3

OpenStudy (anonymous):

ohkay

jhonyy9 (jhonyy9):

can you calculi it now ?

OpenStudy (anonymous):

no .

jhonyy9 (jhonyy9):

why there are every needed dates for

jhonyy9 (jhonyy9):

area of base will be area of a circle what is equal ? formula for area of a circle ?

OpenStudy (anonymous):

idk im not sure .

jhonyy9 (jhonyy9):

pi*r^2

OpenStudy (anonymous):

100pir2 ? no idk can you tell me

jhonyy9 (jhonyy9):

there is the diameter equal 8 in so if you know the diameter is 8 in so than this mean that the radius is how many ?

OpenStudy (anonymous):

14

jhonyy9 (jhonyy9):

the diameter is equal 2*radius so than in this case how many will be the radius ?

OpenStudy (anonymous):

16

jhonyy9 (jhonyy9):

no 8 = 2r so than r= ?

OpenStudy (anonymous):

4

jhonyy9 (jhonyy9):

right so than if you know now that the radius is 4 and the formula for area of base is pir^2 than area will be = ?

OpenStudy (anonymous):

8

jhonyy9 (jhonyy9):

why 8 ? r squared = 4*4 = ?

OpenStudy (anonymous):

16

jhonyy9 (jhonyy9):

yes than area will be = ?

jhonyy9 (jhonyy9):

so you dont like continue it ?

OpenStudy (anonymous):

would it be B ?

jhonyy9 (jhonyy9):

i dont know it again you will can answer this sure just after you have calculed the needed volumes

OpenStudy (anonymous):

a ?

OpenStudy (anonymous):

@kelly226

OpenStudy (anonymous):

@ciara_chap3

jhonyy9 (jhonyy9):

first you need to calculi these volumes and than you will can compare these for you can make this list for you can answer right your exercise ok ?

OpenStudy (anonymous):

can you just answerplease

jhonyy9 (jhonyy9):

so if you like ,or wann getting the right answer not will learn never how you need,can solving the same exercises

OpenStudy (anonymous):

i want the answer , and the explanation would be nice

jhonyy9 (jhonyy9):

but for the right answer for you can getting it you need to cooperat anything and on this way will learne sure easy all needed,necesary explanation sure

OpenStudy (anonymous):

can you walk through it like work the question out

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