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The measure of one of the exterior angle...

The measure of one of the exterior angles of a triangle is twice one of the interior opposite angles and the measure of the other interior opposite angles is `60^@`. The triangle is a/an
त्रिभुज के बाहरी कोणों में से एक का माप आंतरिक विपरीत कोणों से दोगुना है और कोण के विपरीत अन्य आंतरिक कोण का माप `60^@` है। त्रिभुज है?

A

a)right triangle

B

b)scalene triangle

C

c)isosceles triangle

D

d)equilateral triangle

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