Determining if Two Triangles are Congruent by Plotting Points

The video tutorial explains how to determine if two triangles, ABC and KLM, are congruent by plotting their coordinate points and analyzing their side lengths. The process involves plotting the points, labeling them, and comparing the side lengths. It concludes that the triangles are not congruent due to unequal side lengths and angles.

What is the first step in determining if two triangles are congruent?

• Check if the triangles are right-angled

• Calculate the area of the triangles

• Plot the coordinate points of the triangles

• Measure the angles of the triangles

Which of the following is a coordinate point for triangle ABC?

• K(0, -2)

• L(0, 1)

• A(-4, 2)

• M(4, 1)

What must be true for two triangles to be congruent?

• All corresponding side lengths and angles must be equal

• They must have the same area

• They must be right-angled triangles

• They must have the same perimeter

Why are triangles ABC and KLM not congruent?

• They have different areas

• They are not right-angled

• They have different side lengths

• They have different perimeters

Which side length is mentioned as being unequal between the triangles?

• Side length of 5

• Side length of 3

• Side length of 4

• Side length of 2