Asked by Anonymous

I have a diagram of how far a discus was thrown.
From A to B is 100m, C is perpendicular to A, from A to C is 50m, A and B are connected to D (it should be a triangle), A has a 40° angle and B has a 75° angle. C is not perpendicular to D btw..

a. Find AD and use it to find CD.
*AD=107.33m, CD=84.38m is that correct?*

b. Find an expression for the distance from Point A to point D, in terms of α and β. Then use that to find and expression for CD, in terms of α and β.

Huh?? I'm confused, help me please!
Answered by Steve
AD/sin75° = 100/sin65°
AD = 106.58

CD^2 = 50^2 + 106.58^2 - 2*50*106.58 cos50°
CD = 83.72

Hmmm. we're close. Better check
(a) my math
(b) your math

On part b, ya got me. what are α and β supposed to be? Maybe they are to be substituted for the actual angles we used to compute the distances. Then the formula can be used for other angle values.
Answered by Anonymous
I double checked my math, and you're right.
For part b, they gave the same diagram except for angle A it's α instead of 40° and angle B is β.
Answered by My child is dumb
Steve!!! Your grounded! I'm so glad I found this website you little piece of crap.
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