Question

a: what is the length of the hypotenuse of triangle ABC?
b: find the length of the shorter leg of triangle ABC using two different methods. Show your work for both.

Answer 1

@triciaal this should be easier

Answer 2

do you know what mean cos35° = ?

Answer 3

is that the correct equation?

Answer 4

for hypothenuse yes sure

Answer 5

.81

Answer 6

how you have got it ?

Answer 7

just calculated it

Answer 8

can you write your calculi here please ?

Answer 9

for method one i got 8.6

so shouldn't my method 2 equal 8.6 too.

Answer 10

how is this method 2 ?

Answer 11

i have to solve this problem 2 ways.

Answer 12

and show my work

Answer 13

ok. i understand it - so one way is what i have wrote to you firstly above - yes ?

Answer 14

cos35 degress?

Answer 15

ok. but first of b. you need to solve a. and this mean that you know the length of hypotenuse - so than you can using for shorter side sin35 = ? and like second method use ?

Answer 16

cos 35 not can using because cos saying adjacent side divide hypothenuse

Answer 17

and you need to calculi the length of shorter side - yes ?

Answer 18

tan 35 equal with ?

do you know what say tan of an angle ?

Answer 19

hmm

Answer 20

.7?

Answer 21

sorry. I'm not good at math

Answer 22

It might be helpful to note that angles in a triangle att to 180. So the other angle is 55
Tan 55 = 15/BC solve for BC the shorter side

Answer 23

wait where'd you get the 55 :(

Answer 24

Sin Rule
a/Sin A = b/Sin B = c/Sin C

Answer 25

I don't know how to draw on the iPad

Answer 26

oh no! :(

Answer 27

okay so far I wrote down Tan55=15/bc. is BC, B times C?

Answer 28

Typo above
Angles in a triangle ADD up to 180

Answer 29

The line from B to C

Answer 30

oh ok

Answer 31

so is the equation 1.42=15/BC ?

Answer 32

someone from open study showed me another method because my school wants me to solve it using two methods, and as an answer I got 8.6. would that be correct?

Answer 33

Need to get to my computer so I can draw. Will check if you are still "open"

Answer 34

got it

Answer 35

What did you get when you solved the equation for the line BC ?

Answer 36

Regardless of the method you should get the same length

Answer 37

I got 1.42=15/BC

Answer 38

Think of BC as the unknown single variable and solve for it

Answer 39

I got 10.71

Answer 40

Do you see that BC = 15 divided by 1.42 based on your equation?

Answer 41

I got 10.71