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Yes an isosceles triangle can have two equal acute base angles of 40 degrees and an apex angle of 100 degrees

Q: Can an acute isoseleice triangle have to angles of 40 degrees?

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There are three acute angles in an acute triangle and they add up to 180 degrees.

No. By definition, an acute triangle is a triangle where all three angles are <90 degrees. Therefore, an equilateral triangle, where all the angles are 60 degrees would qualify as an acute triangle.

A triangle can have 3 acute angles that add up to 180 degrees

An acute triangle is a triangle with all angles acute (for example, a triangle with angles 64 ,36, and 80). An acute angle is an angle less than 90 degrees. Also, all angles in a triangle MUST sum to 180 degrees.

A acute triangle is a triangle with only acute angles (angles less than 90 degrees). No obtuse or right angle.

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There are three acute angles in an acute triangle and they add up to 180 degrees.

No. By definition, an acute triangle is a triangle where all three angles are <90 degrees. Therefore, an equilateral triangle, where all the angles are 60 degrees would qualify as an acute triangle.

A triangle can have 3 acute angles that add up to 180 degrees

An equilateral triangle has 3 equal interior acute angles of 60 degrees

If all three angles of a triangle measure less that 90 degrees (if all three angles are acute), the triangle is an acute triangle. A triangle that has a right angle (an angle the measures exactly 90 degrees) is a right triangle. (The other 2 angles will be acute angles.) A triangle that has an angle that is greater than 90 degrees (an obtuse angle), is an obtuse triangle. (The other 2 angles will be acute angles.)

An acute triangle is a triangle with all angles acute (for example, a triangle with angles 64 ,36, and 80). An acute angle is an angle less than 90 degrees. Also, all angles in a triangle MUST sum to 180 degrees.

A acute triangle is a triangle with only acute angles (angles less than 90 degrees). No obtuse or right angle.

A triangle with an acute angle.An acute triangle has all three angles less than 90 degrees.

An equilateral triangle has 3 equal acute angles of 60 degrees that add up to 180 degrees

all three angles less than 90 degrees.

Yes, but a triangle is acute only if all three of its angles are acute (< 90o).An isosceles triangle can be an acute triangle, but it doesn't have to be.An acute triangle can be an isosceles triangle, but it doesn't have to be.That depends on the sizes of its angle because an isosceles triangle has 2 equal sides and 2 equal angles which could be 70 degrees, 70 degrees and 40 degrees which are all acute angles that add up to 180 degrees.

If all of the 3 acute angles are 60 degrees then it is an equilateral triangle if not then it could be a scalene triangle.