The correct answer is
3 acute angles
2 acute angles, 1 right angle
2 acute angles, 1 obtuse angle
<h2>Further Explanation</h2>
The basic properties of triangles include
- In a triangle, all the sum of the angle is 180 degree and it is also referred to as angle sum property.
- In a triangle, the sum of the two sides is greater than the sum of the third side.
- In a triangle, the longest side is the side that opposite the largest angle and vice versa.
A triangle refers to a closed figure with a three-line segment and three angles.
The three types of a triangle based on size are:
Equilateral triangle
, Isosceles triangle and Scalene triangle
- An equilateral triangle is a triangle where the lengths of all the three sides are equal
- An isosceles triangle is a triangle where its two sides are equal
- A scalene triangle is a triangle that has three sides with different length
However, the three types of a triangle based on angles include:
- Acute-angled triangle: in Acute-angled triangle, all its angle are acute
- Obtuse-angled triangle: in Obtuse-angled triangle, one its angle is obtuse
- Right-angled triangle: in the Right-angled triangle, one of its angles is a right angle.
Therefore, the correct answer is 3 acute angles, 2 acute angles, 1 right angle, 2 acute angles, 1 obtuse angle
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KEYWORDS:
- right-angled triangle
- acute angles
- 2 acute angles
- obtuse angle
- a scalene triangle