UNIT 2

Question

Classify Two-Dimensional Figures
LESSON 5
Classify Two-Dimensional Figures Unit Test

Kevin drew a triangle with angle measures of 30 degrees and 40 degrees and side measures of 5 cm, 7 cm, and 8 cm. Explain, using sides and angles, which type of triangle Kevin drew

Answer 1

Based on the side measures, we can see that the triangle is not equilateral because all sides have different lengths.

Based on the angle measures, we can see that the triangle is not a right triangle because the measures of the angles don't add up to 90 degrees.

Since one angle is greater than 90 degrees, the triangle is not acute.

Therefore, the triangle that Kevin drew is an obtuse triangle because it has one angle greater than 90 degrees.

Answer 2

Trick question, because you cannot have a triangle with the given side lengths:
5/sin30° ≠ 7/sin40°