Question

1. which of the following are characteristics of a scalene triangle?

a. at least two angles are equal
b. all sides are of different lengths
c. it is a regular polygon
d. at least two sides are of equal length

Explanation:

• A scalene triangle has all sides of different lengths.
• Option a: In a scalene triangle, no two angles are equal (since sides are different, angles opposite them are different by the Law of Sines).
• Option c: A regular polygon has all sides and angles equal. A scalene triangle is not regular.
• Option d: This is the property of an isosceles triangle, not a scalene one.

Answer:

B. All sides are of different lengths