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 07-07-2007 #1 taylor17brown Guest   Posts: n/a Can anybody anythis geometry question? The ratio of the corresponding edge lengths of two similar solids is 2:5. What is the ratio of their surface areas?a) 8:125b) 4:25c) 2:5d) 4:10
 07-07-2007 #2 sushant Guest   Posts: n/a The formula for surface area is 6a^2 , a is edge length.=>(6*2*2)/(6*5*5)=>4/25=>4:25=>(b)
 07-07-2007 #3 Barb B. Guest   Posts: n/a a
 07-07-2007 #4 jonn Guest   Posts: n/a 4:25
 07-07-2007 #5 Tom Guest   Posts: n/a 4:25. The areas are in the ratio of the squares of the sides.
 07-07-2007 #6 daylan101292 Guest   Posts: n/a is there a choice e?
 07-07-2007 #7 winter_new_hampshire Guest   Posts: n/a 4:25 because you multiply 2 times 2 and 5 times 5.Area is like a square.And the area of a square is two sides times each other.
 07-07-2007 #8 sarkartapas2005 Guest   Posts: n/a d is the correct answerlet th
 07-07-2007 #9 izzel Guest   Posts: n/a It's b) because the ratio is 2:5 both sides are squared to give the surface area ratio which is 4:25
 07-07-2007 #10 the_humor_guy Guest   Posts: n/a Assuming the solid you are talking about is a regular shaped solid (cube, tetrahedron) with all the edges equal, the answer would be 4:25.This is because normally the formula for area consists of a square (y*y or y^2) of the edge (y). Hence, when calculating the ratio, the constants get cancelled and you get the ratio of the square of the edges.

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