Question

Easy geometry help! Only #15 https://lss.brainhoney.com/Resource/12429854,101,45,36,0/Assets/Honors%20Geometry%20Part%20A%20First%20Semester%20Final%20Form%20A.pdf?attachment=1

Answer 1

@thomaster

Answer 2

@ranga please help! :)

Answer 3

I just need help with ONE question, which is #15 :)

Answer 4

Each of the three triangles, the two smaller inner triangles and the outer triangle are all similar to each other. You have to use that fact to find the lengths of SR and RP.

Answer 5

How do I do that?

Answer 6

I am not sure how to use that information.

Answer 7

http://www.regentsprep.org/Regents/math/geometry/GP12/LMeanP.htm

Answer 8

Can you explain using this problem? :)

Answer 9

@RadEn ?

Answer 10

Find QP first applying Pythagoras theorem to triangle SQP.

Answer 11

i got 11.76^2+19.6^2=c^2

Answer 12

No, SP is the hypotenuse in triangle SQP.

Answer 13

SQ^2 + QP^2 = SP^2

Answer 14

oh ok, so then what? do i multiply the exponents?

Answer 15

Find QP first. QP^2 = SP^2 - SQ^2
QP^2 = 19.6^2 - 11.76^2 = ?
QP = ?

Answer 16

how do i find QP? i am really confused.

Answer 17

If you find QP^2, you can take the square root to find QP.

Answer 18

what is QP^2

Answer 19

QP^2 = SP^2 - SQ^2
QP^2 = 19.6^2 - 11.76^2 = ?

Answer 20

what is 19.6+11.76?

Answer 21

You can use your calculator to find 19.6^2 - 11.76^2
square 19.6 and subtract square of 11.76

Answer 22

ok hold on...

Answer 23

4379.424

Answer 24

not correct.

Answer 25

that is what i got when i used my calculator

Answer 26

i do online school and this worksheet is going to expire in 45 seconds please help!!!

Answer 27

I myself don't have the answer. I have to go step by step with you and calculate as we go along. There are a few more calculations before we can find the answer and that cannot be done in that time.

Answer 28

ok maybe my teacher will give me a pass, but i need the answer for this one. i'm willing to do the work :)

Answer 29

QP^2 = 19.6^2 - 11.76^2 = 245.86
QP = square root of (245.86) = 15.68.

From the link I posted earlier, using similar triangles we can say:
RQ * QP = SQ^2
RQ = SQ^2 / QP = 11.76^2 / 15.68 = ?

Answer 30

i don't know what the squares would be, though

Answer 31

RQ = 8.82

In triangle SQR, RS^2 = RQ^2 + SQ^2 = 8.82^2 + 11.76^2
RS = 14.7
Perimeter = RS + SP + PQ + QR = 14.7 + 19.6 + 15.68 + 8.82 = ?

Answer 32

You just need to add the last 4 numbers in my previous reply to get the answer.

Answer 33

ok thanks!

Answer 34

i will tell you what i get so you can check it

Answer 35

It is 58.8.

Answer 36

yeah thats what i got! thanks!

Answer 37

you are welcome.