Question

What classification best represents a triangle?

Answer 1

c^2 = 15^2 = 225
a^2 + b^2 = 10^2 + 12^2 = 100 + 144 = 244

c^2 < a^2 + b^2
Triangle is acute triangle

answer is A.
acute because 10^2 + 12^2 > 15^2