Question

Just imagine that this is a right triangle where d is the altitude.
Find the values of a, b, c, d.
About the Right Triangle Similarity....


|\ Given: a+b = 18
| \ a
| \
| /\
6| / \
| /d \ b
| / \
| / \
|/_________\
c

Please help me... Thanks

Answer 1

First, you know how to figure out c right?
Just use the Pythagorean theorem:
a^2+b^2=c^2
6^2+b^2=18^2
b^2=288
b=16.97 (approximately)

Answer 2

nope, i dont know, i'm new to this

Answer 3

Okay, that's good too XD do you understand the Pythagorean theorem now? If not, look at this: http://www.mathsisfun.com/pythagoras.html

Answer 4

@14yamaka where did you get a^2+b^2=c^2 from?!!

Answer 5

...? are you pulling my leg hoblos?? :P or for real?

Answer 6

are you following Jenuine? XD

Answer 7

yeah, i got the pythagorean theoren
but i still dont know how to find the other variables

Answer 8

Ok, so now the proof of triangular similarity
we have to know that before going on

Answer 9

Do you know what makes two triangles similar?

Answer 10

no

Answer 11

If the angles in two triangles are the same, they are similar.

Answer 12

It is generally frowned upon to repost the same question when it has already been answered once. If you delete this post and go back to the first one, I will help you.

Answer 13

?? 0.0 sry Mertsj, didn't know this was already posted :(

Answer 14

Should I continue with this explanation?

Answer 15

yes

Answer 16

oh....make sure you don't do this again okay? X( I know you meant no harm, but it can cause bad feelings so...

Answer 17

sure.. ok

Answer 18

ok, so you got that triangles are similar if their angles are the same?

Answer 19

yes

Answer 20

Proof for triangle similarity:
angle XYZ and angle YWZ are both right angles
angle Z is shared so both triangles have this angle.
If two of the angles are the same, the remaining angle is also the same.
Since all three of the angles are the same, the triangles are similar.

Answer 21

ok