Question

show the conditional statement: R ( θ ) : The triangle with angles ˆ a = θ, ˆ b = θ + 10 0 , c ˆ = 180 0 − a ˆ − ˆ b is an acute triangle where the domain is R .

Answer 1

if there is a triangle with angles ˆ a = θ, ˆ b = θ + 10 0 , c ˆ = 180 0 − a ˆ − ˆ b, then it is an acute triangle.