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Mathematics 19 Online
OpenStudy (sarahc):

Look at the net of the polyhedron shown below. The number of edges of the polyhedron is ________.

OpenStudy (sarahc):

OpenStudy (sarahc):

@jim_thompson5910 39? :/

jimthompson5910 (jim_thompson5910):

i'm getting 39 as well, nice job

jimthompson5910 (jim_thompson5910):

oh wait, i'm double counting though, one sec

ganeshie8 (ganeshie8):

im getting 24

jimthompson5910 (jim_thompson5910):

yes it's 24, because there are 8 edges per base face + 8 lateral edges

OpenStudy (sarahc):

Ohhhh, alright I see. thanks guys!

ganeshie8 (ganeshie8):

OpenStudy (sarahc):

A spherical fish bowl is half-filled with water. The center of the bowl is C, and the length of segment AB is 12 inches, as shown below. Use 22/7 for pi. What is volume, in cubic inches, of water inside the fish bowl? 339.35 452.57 678.65 904.90

OpenStudy (sarahc):

OpenStudy (sarahc):

im thinkin B or D

ganeshie8 (ganeshie8):

hmm.. how much region is filled wid water, half right ?

OpenStudy (sarahc):

YES

ganeshie8 (ganeshie8):

so.. .you can use the formula for "volume of sphere" and take half of it

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