Question

Solve the right triangle if a = 11 and B = 809

O b= 11.1697, c = 1.9396
O b = 63.3465, C = 62.3841
O b = 62.3841, C = 63.3465
O b = 1.9396, C = 11.1697

Answer 1

• a=11
• B=80.9°

`\\ \tt\hookrightarrow tanB=(b)/(a)`

`\\ \tt\hookrightarrow tan80.9=(b)/(11)`

`\\ \tt\hookrightarrow b=11(6.24)=68.64`

`\\ \tt\hookrightarrow cos 80.9=(11)/(c)`

`\\ \tt\hookrightarrow c=(11)/(6.24)`

`\\ \tt\hookrightarrow c=1.76`

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