triangle CRV has side lengths that measure 10 centimeters, 12 centimeters, and 15 centimeters. Which of the following best describes this type of triangle?A) scalene triangleb) equilateral trianglec) isosceles triangled) obtuse triangle

Accepted Solution

Answer:A. Scalene, which just means three unequal sides.Step-by-step explanation:An equilateral triangle has three equal sides and an isosceles triangle two, so it's not those.Obtuse means there's at least one obtuse angle, always opposite the longest side.  Here we have 10^2+12^2=244 which is greater than 15^2=225, indicating the angle opposite 15 is acute, so not this one either.