Can anybody help me on this please I will be giving 15 points..

asked Apr 25, 2021 154k views

5 votes

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3 votes

Using the pythagorean theorem

$AC^2=AB^2+BC^2\\BC=√(AC^2-AB^2)\\BC=√(12^2-7^2)\\BC=√(144-49)\\BC=√(95)$

$sin A=(BC)/(AC)=(√(95) )/(12)\\A = sin^(-1)((√(95) )/(12))\\A = 54.31$

$A + C = 90\\C = 90-A\\C= 90- 54.31\\C = 35.69$

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