Question

@mathstudent55 :/
May you walk me through this one ..

Answer 1

Okay... What you're going to want to do is to try and find the greatest common factor withing each row.

Answer 2

In the case of the first row, what do 14, 21, 28 and 25 all have in common?

Answer 3

35... my apologies

Answer 4

just find the ratio of the corresponding sides of both figures given and see if the ratio is same for all corresponding pairs..

Answer 5

7...
and 2nd row is 8..
I don't understand how this relates to GCF...

Answer 6

okay, so what are the factors that yield the numbers in each row? Are they the same in each row with the exception of the 7 and 8?

Answer 7

like 16/14 =8/7 and 24/21 =8/7
if figures are similar their corresponding sides are proportional..

Answer 8

you know what... listen to @matricked his way of doing this will probably work a bit more smoothly.

Answer 9

Below are the 4 pairs of corresponding dimensions of the two pyramids.

16/14
24/21
32/28
40/35

Either reduce all the fractions above, or take a calculator and do all the divisions.
What results do you get?

Answer 10

1.14
1.14
^ same again and again..

Answer 11

That means all ratios are the same.
When two solids have all corresponding linear dimensions in the same ratio, are they congruent or similar?

Answer 12

They are similar, corresponding sides are the same; it is B!

Answer 13

yup

Answer 14

They are similar bec all pairs of corresp linear dimensions are in the same ratio
You are correct..