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Trig Function help! (1 Viewer)

SGSII

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Hi Guys :)
Could someone please help solve this question:
Capture.jpg
Thanks :)
 

crex

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EDIT: Working out is wrong, reason is below
 
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braintic

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Answer correct, but not the working.

It should be: From the diagram, diameter of sun = 2 (149 000 000 tan 15.5').

It gives the same answer because the approximation we are using assumed sin2x = 2sinx for small angles. If you wanted a precise answer using the tan button on the calculator, your answer would be wrong.
 

crex

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Answer correct, but not the working.

It should be: From the diagram, diameter of sun = 2 (149 000 000 tan 15.5').

It gives the same answer because the approximation we are using assumed sin2x = 2sinx for small angles. If you wanted a precise answer using the tan button on the calculator, your answer would be wrong.
oh kk
thanks for pointing out my mistake :)
 

SGSII

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Thanks guys!
But the answer is 1343622km
 

Shazer2

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Can't you just split it in half and use right angle trig to find x/2, then times that by 2 to get answer?

IMG_0498.jpg
 
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Shazer2

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Sorry I skimmed over your post and didn't see that, I only saw quoted part. Apologies!
 

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