Question

Use the image below to answer the following question:

A right triangle is shown. The two angles that are not 90 degrees are marked x and y. The leg across from angle y measuring 12, another leg across from angle x measuring 16, and the hypotenuse measuring 20.

What relationship do the ratios of sin x° and cos y° share?

The ratios are opposites (16 over 20 and negative 16 over 20)
The ratios are both identical (16 over 20 and 16 over 20)
The ratios are both negative (negative 16 over 20 and negative 16 over 20)
The ratios are reciprocals (16 over 20 and 20 over 16)

Answer 1

@welshfella

Answer 2

sin x = 16/20 = 0.8

sin y = 12/20 = 0.6


so grab ur calc and just find the angles whose sines are 0.8 and 0.6

Answer 3

so find the sin of .8 nd .6?

Answer 4

but the question is what is the relationship they have

Answer 5

on ur calculator it will be the key sin-1 or maybe arcsin

Answer 6

sin-1

Answer 7

53.130 when i do sin-1(.8)

Answer 8

yea enter sin-1 then 0.8 or on some calcs its the other way round

Answer 9

yes thats right

Answer 10

and sin-1(.6) is 36.869 or .36.970

Answer 11

so what now?

Answer 12

i make it 36.87

those are the answers

Answer 13

I'm confused

Answer 14

oh i hadnt seen that

cos y = 16/20


so cos y = sin x

Answer 15

option B

Answer 16

Alright thanks man appreciate it!!

Answer 17

yw