Question

I am Stuck. Help. MEDAL!!!

What is the length of stack H D with bar on top when BH = 20 in., BC = 12 in., and DC = 14 in.? Round your answer to the nearest tenth of an inch.
in.

Answer 1

Image

Answer 2

anyone

Answer 3

@IrishBoy123

Answer 4

@Loser66 can you help me.

Answer 5

just the use of Pythatgorean theorem couple of times

Answer 6

@xapproachesinfinity is a perfect guy for this

Answer 7

ok

Answer 8

ok let come from a clearer picture!
you recognize HDC is right triangle yes

Answer 9

yes

Answer 10

we are given DC
but we need HC
to do the so called Pythagoras yes

Answer 11

yes

Answer 12

now what we do is look at the triangle HCB
it is also a right triangle
and we are given BC and BH
so we can find HC

Answer 13

ok how?

Answer 14

so then we have the following:\
HC^2+BC^2=BH^2
HC^2=BH^2-BC^2
HC^2=20^2-12^2

Answer 15

now tell me what is after you take the square root

Answer 16

you have a calculator with right

Answer 17

i got HC=16

Answer 18

me too

Answer 19

now we go back to our first triangle HDC
now we have HC=16 and DC=14
we use again that same theorem to find HD
HD^2+DC^2=HC^2
HD^2=HC^2-DC^2
HD^2=16^2-14^2

Answer 20

let see what you got

Answer 21

60?

Answer 22

sqrt of 60 not just 60
because i told you to take square root after that too

Answer 23

so then HD=7.75 inch

Answer 24

is that the answer?

Answer 25

if we wanted the decimal, well in a way we want the decimal since we measuring length

Answer 26

yes

Answer 27

can you help me with three more?

Answer 28

let see
post in a different section though

Answer 29

ok I will tag you.

Answer 30

ok