# Math 8 - HELP!!!!!

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Ratio, Proportions, and Similarity

Similar Figures

A room is 36 ft long and 18 ft wide. What is the length to width ratio?

• Math 8 - HELP!!!!! -

36/18 = 2/1 = 2:1

• Math 8 - HELP!!!!! -

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...???

• Math 8 - HELP!!!!! -

Right.

• Math 8 - HELP!!!!! -

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....????

• Math 8 - HELP!!!!! -

No. That answer doesn't make any sense. The length must be a lot longer than 12 in.

• Math 8 - HELP!!!!! -

12 x 8 = 96/24 = 4

right...?

• Math 8 - HELP!!!!! -

or...

12 x 24 = 288/8 = 36

• Math 8 - HELP!!!!! -

Which is the only answer that makes sense?

• Math 8 - HELP!!!!! -

the second one

• Math 8 - HELP!!!!! -

Of course.

• Math 8 - HELP!!!!! -

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...

• Math 8 - HELP!!!!! -

3/4 * 8 = 24/4 = 6

3/4 * 10 = ?

• Math 8 - HELP!!!!! -

7 1/2?

• Math 8 - HELP!!!!! (question) -

why can you just multiply 3/4 and 10 to get the answer?

why 3/4 * 8 = 24/4 = 6...??

• Math 8 - HELP!!!!! -

Because you've reduced the size to 3/4 of its original size.

• Math 8 - HELP!!!!! -

oh ok

THANK YOU! :)

please reply my other math post

thank you! :)

• Math 8 - HELP!!!!! -

You're welcome.

• ms. sue please reply my math post -

please reply my math post

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