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Mathematics 8 Online
OpenStudy (anonymous):

two cones are similar what is the height of the smaller cone the big cone has a height of 5 and a radius of 7 and the smaller cones has x as the height and 4 as the radius please help me im getting really upset because nothing i do works

OpenStudy (campbell_st):

so the cones are similar, use the ratio of the radii to find the height \[\frac{x}{5} = \frac{4}{7}\] just solve for x.

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