Harris has a triangular flag. He wants to cut out a similar flag that has dimensions one-fifth of the original flag. If the area of the original flag is 1250 square inches, what is the area of the new flag that Harris cuts out?

Question

agreene · Answer

one-fifth or 1/5 = 0.2  in decimal form; thus:
1250*0.2 = 250 in^2  is the area of the smaller flag.

anonymous · Answer

These were my choices
10 in2 
   25 in2 
   50 in2 
   65 in2

anonymous · Answer

So, 25?

anonymous · Answer

no, they want the new area with each dimension reduced to 1/5 the original, the area does not reduce to 1/5 however

phi · Answer

Qwerty, why don't you think about it?
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all the sides get smaller by 1/5

phi · Answer

so what is the area of the smaller triangle?

agreene · Answer

yeah, i misread the question. the dimensions, not the area reduce.

directrix · Answer

50 in^2   --> I would go with this answer because the square of the scale factor of two similar polygons is the ratio of their areas.

(1/5) ^2 = A/1250

1/25 = A/ 1250

25A = 1250

A = 50

anonymous · Answer

Yes I see that now, I tried to smaller the dimensions but I had to figure out what he original dimensiions were

anonymous · Answer

you don't need the original dimensions

anonymous · Answer

So, if my areaa is 1250 I have to figure out what 1/5 of the dimensions are so tat they equal the 1250?

anonymous · Answer

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