# Three vectors

The three forces whose amplitudes are in ratio 9:10:17 act in the plane at one point to balance. Determine the angles of each two forces.

A =  53.1301 °
B =  154.9424 °
C =  151.9275 °

### Step-by-step explanation:

$B=180-{u}_{1}=180-25.0576=154.9424\text{°}=154\mathrm{°}5{6}^{\mathrm{\prime }}33\mathrm{"}$
$C=180-{u}_{2}=180-28.0725=151.9275\text{°}=151\mathrm{°}5{5}^{\mathrm{\prime }}39\mathrm{"}$

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