sin rule ambiguous case for spherical trig | Mathematics | Page 1

hazy sorrelBOT Dec 14, 2025, 10:20 AM

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viscid sentinel Dec 14, 2025, 10:22 AM

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@onyx saddle do you know that the side opposite to the largest angle is the largest side

onyx saddle Dec 14, 2025, 10:23 AM

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why cant b be the longest side tho

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uh how do we know

viscid sentinel Dec 14, 2025, 10:25 AM

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Wait, I see some problems

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Explain your working please

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I cannot distinguish angles and sides

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Are they arcs or a triangle

onyx saddle Dec 14, 2025, 10:26 AM

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okay well we know a, c, A, and we're tryna find C

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arcs so its all angles

viscid sentinel Dec 14, 2025, 10:26 AM

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Aah

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Then you define A and C with the slope or opposite vertex???

onyx saddle Dec 14, 2025, 10:27 AM

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sin rule: sin(a)/sin(A) = sin(c)/sin(C) i just plugged in number and got the 2 answers for C

onyx saddle Dec 14, 2025, 10:27 AM

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viscid sentinel Then you define A and C with the slope or opposite vertex???

uh wdym

viscid sentinel Dec 14, 2025, 10:27 AM

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That implies A is defined as the angle in the triange

onyx saddle Dec 14, 2025, 10:27 AM

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im really new to spherical trig

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thats why im here 😭

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yes A is the bottom left angle in my sketch

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72 deg

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we r given that

viscid sentinel Dec 14, 2025, 10:29 AM

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I'll probably let someone deal with this because I gtg and I cannot understand the notation. If nobody's here in 15 mins, you can ping helpers ig

onyx saddle Dec 14, 2025, 10:29 AM

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okay nw

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thanks for trying to help!

#sin rule ambiguous case for spherical trig