SOLUTION: can you please help me slove ((( True of false Two right circular cones with radii 4 and 8, and heights 10 and 20, respectively, are similar. )))

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Question 201599This question is from textbook geometry
: can you please help me slove ((( True of false Two right circular cones with radii 4 and 8, and heights 10 and 20, respectively, are similar. )))This question is from textbook geometry

Found 2 solutions by Alan3354, RAY100:
Answer by Alan3354(5863) About Me  (Show Source):
You can put this solution on YOUR website!
can you please help me slove ((( True of false Two right circular cones with radii 4 and 8, and heights 10 and 20, respectively, are similar. )))
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That's true. If you look at a 2-dimensional projection of a cone, it's a triangle, and increasing it by the same ratio makes them similar.

Answer by RAY100(1608) About Me  (Show Source):
You can put this solution on YOUR website!
In solid figures, if linear dims are proportional, figures are similar.
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Scale factor by radius are,,4/8 = 1/2,,,by height,,10/20 =1/2,,,,
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Therefore they are similar