Question

Help

Answer 1

I have an opposite leg of a right triangle that is 40mm long, I have an adjacent leg of 165mm what is the measure of angle a which is the angle in between the hypotenuse and the adjacent leg

Answer 2

what is the sine, cosine, and tangent ratios for ∠ A.

Answer 3

i wont give u the answer
but i will help you

Answer 4

ok that is what I wanted

Answer 5

first of all we need to use cosine since were dealing with adjacent/hypotenuse

Answer 6

what we first want to do tho is use tangent to find the length of the hypotenuse

Answer 7

actually for the hypotenuse we could do a^2=b^2=c^2

Answer 8

the length is about 170

Answer 9

But he need to find the angle

Answer 10

not the hypotenuse

Answer 11

begzat

Answer 12

to find the angle you need to find the hypotenuse

Answer 13

no

Answer 14

yep

Answer 15

169.78 is the length of the hypotenuse

Answer 16

the hypotenuse is 170 so we dont need to find it

Answer 17

do you know what is Trigonometric Ratios

Answer 18

alright then from there is pretty simple

Answer 19

i rounded

Answer 20

if you know Trigonometric Ratios formula you can find very easy the angle

Answer 21

ok but what are the steps i forgot

Answer 22

okay i will post the formulas and you will find wich one you need to use

Answer 23

ok

Answer 24

sin=opposite leg/ hypotenuse

cos=adjacent leg/hypotenuse

tan=opposite leg/ adjacent leg

Answer 25

know which one you need to use

Answer 26

now***

Answer 27

so I need to use cosine

Answer 28

no because you know opposite and adjacent leg

Answer 29

i also know hypotenuse it is 170

Answer 30

but on the question it said that you know opp. and adj.

Answer 31

you can use tan if you want

Answer 32

I forgot to post the hypotenuse

Answer 33

okay so you can use all

Answer 34

but which one helps me find my angle

Answer 35

all

Answer 36

you can use tan=opp./adjacent leg

Answer 37

well can you help me with the steps for cos

Answer 38

>well can you help me with the steps for cos
The cosine of an acute angle of a right triangle is the ratio of the length of the leg adjacent to the hypotenuse to the hypotenuse length.

cos(A) = 165/169.78
cos(A) = 0.9718459 approx
A = ?