Posted by Laruen on Wednesday, February 27, 2013 at 6:56pm.
36/18 = 2/1 = 2:1
Ratio, Proportions, and Similarity
Similar Figures
An isosceles triangle has a base of 8 inches and legs measuring 12 inches. How wide is the base of a similar triangle with legs measuring 36 inches?
36 x 8 = 288/12 = 24
right...???
Right.
Ratio, Proportions, and Similarity
Similar Figures
A photo that is 8 in. wide and 12 in. long is enlarged to a poster. If the width is enlarged to 24 in., what is the length of the poster?
24 x 4 = 48/12 = 4
right....????
No. That answer doesn't make any sense. The length must be a lot longer than 12 in.
12 x 8 = 96/24 = 4
right...?
or...
12 x 24 = 288/8 = 36
Which is the only answer that makes sense?
the second one
Of course.
Ratio, Proportions, and Similarity
Similar Figures
Clyde makes a copy of an 8 in. x 10 in. photo, reducing it to 3/4 of its size. What are the dimensions of the new photo?
Ok... I REALLY don't get this question..
Please help...
3/4 * 8 = 24/4 = 6
3/4 * 10 = ?
7 1/2?
Right.
why can you just multiply 3/4 and 10 to get the answer?
why 3/4 * 8 = 24/4 = 6...??
Because you've reduced the size to 3/4 of its original size.
oh ok
THANK YOU! :)
please reply my other math post
thank you! :)
You're welcome.
please reply my math post
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