Math-CHECK PLEASE

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Which of the statements is ALWAYS TRUE?
A-A right triangle is a scalene triangle.
B-An equilateral triangle is an isosceles triangle.
C-An isosceles triangle is an obtuse triangle.
D-A right triangle is an acute triangle.
I got either A or D. I don't know.

Also, if angle A is 26.5, angle B is 3 times angle A, would angle C be 74, and would the triangle be a scalene?

  • Math-CHECK PLEASE -

    B

    angle C = 74 , yes

  • Math-CHECK PLEASE -

    Thanks so much!! :D

  • Math-CHECK PLEASE -

    Answer is B

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