# Right triangle

Calculate the length of the remaining two sides and the angles in the rectangular triangle ABC if a = 10 cm, angle alpha = 18°40'.

A =  18.6667 °
B =  71.3333 °
C =  90 °
a =  10 cm
b =  29.6004 cm
c =  31.244 cm

### Step-by-step explanation:

$A=18+40\mathrm{/}60=18.6667\text{°}=18\mathrm{°}4{0}^{\mathrm{\prime }}$
$B=90-A=90-18.6667=71.3333\text{°}=71\mathrm{°}2{0}^{\mathrm{\prime }}$
$C=90=90\text{°}$

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