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Mathematics 10 Online
OpenStudy (anonymous):

Kaitlyn runs on a triangular track in a local park. On Saturday, she runs one lap around track BAC. The length of each path on this track is shown in meters (m) in the diagram below. If track DEF is similar in shape to track BAC, how many meters, rounded to the nearest tenth, would Kaitlyn run in one lap on track BAC? Type the numeric answer only in the box below.

OpenStudy (anonymous):

@ganeshie8 Can You Help With This One Two Please?

ganeshie8 (ganeshie8):

DEF ~ BAC DE and BA are corresponding parts, eh ?

ganeshie8 (ganeshie8):

look at the pic, DE = 11 BA = 22 right ?

OpenStudy (anonymous):

Okay.

ganeshie8 (ganeshie8):

that means, tracks on BAC are twice as long as tracks on DEF

ganeshie8 (ganeshie8):

so total length of BAC also would be twice as long as the total length of DEF

ganeshie8 (ganeshie8):

whats the total length of DEF ?

OpenStudy (anonymous):

So Would I Add All Sides Ten Multiply By 2?

ganeshie8 (ganeshie8):

Yes, good guess :)

OpenStudy (anonymous):

66?

ganeshie8 (ganeshie8):

correct !!

OpenStudy (anonymous):

Thank You!

ganeshie8 (ganeshie8):

np.. yw =)

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