Base angles of an isosceles triangle
In an isosceles triangle the two base angles are equal. All three angles add to 180 degrees.
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An isosceles triangle has an apex angle of 140°. How many degrees is each base angle?
Answer: 20
An isosceles triangle has an apex angle of 98°. How many degrees is each base angle?
Answer: 41
An isosceles triangle has an apex angle of 46°. How many degrees is each base angle?
Answer: 67
Tip: In an isosceles triangle the two base angles are equal. All three angles add to 180 degrees.
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