Question

Triangle PQR is a right triangle. If PQ=8, what is RQ?

Answer 1

A. 4
B. 8 radical 3
C. 4 radical 3
D. 16

Answer 2

PQ is the hypotenuse so you can use trigometry to find the other sides by using sine, cosine, cosecant and secant to find the missing lenfths if that helps

Answer 3

Do you know how to do that?

Answer 4

okay one sec I just explained some thing wrong I know A simpler way

Answer 5

ok

Answer 6

there are two special right triangles this is one called a 30-60-90 because of its angle measures

Answer 7

and finding lengths are really easy

Answer 8

so the side opposite of the 60 angle which is PR is going to be half the size of the hypotenuse so PR is 4.

Answer 9

then the side opposite the 30 degree angle is RQ so to find this side you will always find it by multipling the side Opposite The 60 DEGREE angle by the Square root of three.

Answer 10

so 4 x square root of 3 = 6.93 so you couldround if they ask you but RQ is 6.93

Answer 11

So the answer is C?

Answer 12

Yes soory it took me so long

Answer 13

That's fine, thank you so much. :)

Answer 14

Forget sine cosine and all that, thats trigometry

Answer 15

of course I learned this A few weeks ago glad to help! PS radical is the symbol for square roots just so you understand! :)