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:

k=180/(2+3+7)=15 A=2 k=2 15=30
B=3 k=3 15=45
C=7 k=7 15=105

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Math student
Obtuse-angled scalene triangle.

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