Type of triangle

How do I find the triangle type if the angle ratio is 2:3:7 ?

Correct answer:

A =  30 °
B =  45 °
C =  105 °

Step-by-step explanation:

$$\begin{gathered} k=180\mathrm{/}(2+3+7)=15 \\ A=2\cdot k=2\cdot 15=30^{\circ } \end{gathered}$$

$B=3\cdot k=3\cdot 15=45^{\circ }$

$C=7\cdot k=7\cdot 15=105^{\circ }$

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Math student

Obtuse-angled scalene triangle.

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