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<blockquote data-quote="MathLover1" data-source="post: 1099941" data-attributes="member: 280">first find angle B:<img src="https://www6b3.wolframalpha.com/Calculate/MSP/MSP123971h367ab3491e083c0000310aia67302ic046?MSPStoreType=image/gif&amp;s=10" alt="" class="fr-fic fr-dii fr-draggable " data-size="" style="" /><img src="https://www6b3.wolframalpha.com/Calculate/MSP/MSP152911ceh2gb2c1e79bad000050653587ff43bb3e?MSPStoreType=image/gif&amp;s=19" alt="" class="fr-fic fr-dii fr-draggable " data-size="" style="" /><img src="https://www6b3.wolframalpha.com/Calculate/MSP/MSP1285811bb0af49a16ii55000017cc0468g3i46f04?MSPStoreType=image/gif&amp;s=4" alt="" class="fr-fic fr-dii fr-draggable " data-size="" style="" />then angle C isC=180-(25.07+78.8898 )C=76.04°&nbsp; and side c<img src="https://www6b3.wolframalpha.com/Calculate/MSP/MSP41031320c5ef8ha80i9g0000105237i59bagd704?MSPStoreType=image/gif&amp;s=8" alt="" class="fr-fic fr-dii fr-draggable " data-size="" style="" /><img src="https://www6b3.wolframalpha.com/Calculate/MSP/MSP158823fa17a766170cf0000036234h327cc604dg?MSPStoreType=image/gif&amp;s=3" alt="" class="fr-fic fr-dii fr-draggable " data-size="" style="" />c=21.76</blockquote>

[QUOTE="MathLover1, post: 1099941, member: 280"] first find angle B: [IMG]https://www6b3.wolframalpha.com/Calculate/MSP/MSP123971h367ab3491e083c0000310aia67302ic046?MSPStoreType=image/gif&s=10[/IMG] [IMG]https://www6b3.wolframalpha.com/Calculate/MSP/MSP152911ceh2gb2c1e79bad000050653587ff43bb3e?MSPStoreType=image/gif&s=19[/IMG] [B][IMG]https://www6b3.wolframalpha.com/Calculate/MSP/MSP1285811bb0af49a16ii55000017cc0468g3i46f04?MSPStoreType=image/gif&s=4[/IMG][/B] then angle C is C=180-(25.07+78.8898 ) [B]C=76.04° [/B] and side c [IMG]https://www6b3.wolframalpha.com/Calculate/MSP/MSP41031320c5ef8ha80i9g0000105237i59bagd704?MSPStoreType=image/gif&s=8[/IMG] [IMG]https://www6b3.wolframalpha.com/Calculate/MSP/MSP158823fa17a766170cf0000036234h327cc604dg?MSPStoreType=image/gif&s=3[/IMG] [B]c=21.76[/B] [/QUOTE]