Question

Classify a triangle with side lengths 8m, 16m and 20 m. Answers:
right

scalene

isoseles

equilateral

Answer 1

as all th e sides are unequal and neither the sides form Pythogarean triplet
so check scalene

Answer 2

I figured it was scalene

Answer 3

Obviously can't be equilateral, which has 3 equal sides. Can't be isosceles, either, which requires 2 equal sides. To check for right, see if the sum of the squares of the smaller two legs = the square of the longest leg. If so, it is a right triangle. If the sum is smaller, then it is an obtuse scalene. If the sum is larger, then it is acute scalene.

Answer 4

Thank you