Q:
# How many acute angles does a triangle have?

A:
### Quick Answer

**A triangle has either two or three acute angles, depending on the type of triangle.** Right and obtuse triangles have two acute angles, whereas an acute triangle has three acute angles.

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A triangle must be either acute, right, or obtuse. It also has three interior angles that always total 180 degrees. Because a right triangle has a right angle (exactly 90 degrees), the sum of its two remaining angles must be 90 degrees. These two angles are therefore inferred to be acute. The same holds true for an obtuse triangle, since it has an obtuse angle (measuring more than 90 degrees) that makes the sum of its two other angles be less than 90 degrees. No triangle has only one acute angle, or it wouldn't be a triangle.

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Q:
## What shape has no parallel sides and no equal angles?

A:A scalene triangle has no parallel sides and no equal angles. The three noncongruent sides of a scalene triangle are of different lengths, and the measurements of the three unequal angles inside the triangle, like those of all triangles, add up to a total of 180 degrees.

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Q:
## What is the base angle theorem?

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Full Answer >**The base angle theorem says if two sides of a triangle are congruent, then the angles opposite those sides must also be congruent.**The converse is also true. If two angles of a triangle are congruent, then the opposite sides must be also be congruent.Filed Under: -
Q:
## What are two angles with a common side and no interior points called?

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Full Answer >**Two angles that share a common side and a common vertex, but have no common interior points are called adjacent angles, often abbreviated as "adj."**Adjacent angles lie side by side to each other. Their shared common arm is also called a ray or an edge.Filed Under: -
Q:
## How many angles are in a triangle?

A:No matter what type of triangle is in question, there are always three angles in a triangle. The angle sizes vary on the type of triangle, but there are always three that add up to 180 degrees.

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