Yes you can label a triangle My daughter is in 3rd and she learned last week how to label triangles.
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A scalene triangle will have 3 sides of different lengths and 3 interior acute angles of different sizes that add up to 180 degrees
A right triangle has three sides. If you label the sides connected to the right angle side A and side B, and the hypotenuse side C, A^2+B^2=C^2.
A scalene triangle has 3 different side lengths and 3 different interior acute angles that add up to 180 degrees
A shape that consists of 4 points, 2 rays, and 1 right angle is a right triangle. In this triangle, the two rays represent the legs that form the right angle while the third side connects the endpoints of these rays. The four points can be the three vertices of the triangle and an additional point, such as the right angle's vertex. Thus, the answer is a right triangle.
Label the triangle ABC. Draw the bisector of angle A to meet BC at D. Then in triangles ABD and ACD, angle ABD = angle ACD (equiangular triangle) angle BAD = angle CAD (AD is angle bisector) so angle ADB = angle ACD (third angle of triangles). Also AD is common. So, by ASA, triangle ABD is congruent to triangle ACD and therefore AB = AC. By drawing the bisector of angle B, it can be shown that AB = BC. Therefore, AB = BC = AC ie the triangle is equilateral.