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6.
2.
In isosceles triangle DOG, the measure of the
vertex angle is three times the measure of one of
the base angles. Which statement about A DOG is
true?
A.
ADOG is a scalene triangle.
B.
ADOG is an acute triangle.
C. ADOG is a right triangle.
7.
D. ADOG is an obtuse triangle.
what type of triangle is DOG

Respuesta :

Answer:

D. It is obtuse.

Step-by-step explanation:

If the vertex angle is 3x degrees then the other 2 are x degrees,  as the triangle is isosceles, so:

5x = 180

x = 180/5

x = 36.

So the vertex angle = 36*3 = 108 degrees which is an obtuse angle.

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