what is the size of the smallest angle in triangle H? giver your answer correct to the decimal place show your work

Answer 1

the smallest angle of any triangle is the side opposite the smallest side

use the Law of Sines or Law of Cosines to calculate it

SinA/a = SinB/b = SinC/c

c^2 = a^2 +b^2 -2abCosC

a^2 = c^2 + b^2 -2bcCosA

b^2 = c^2 +a^2 - 2abCosB

Law of Cosines is a generalized Pythagorean Theorem, applying to any triangle, not just right triangles