Question

Triangle ABC has a right angle C and AC=3
How do I find the missing length?
measure of a= 60, AB?
measure of B=60 BC?
measure of A=45 AB?
measure of A=30 AB?

Answer 1

it looks like they want you to memorize special triangles
45-45-90 where 2 legs are equal, and the hypotenuse is sqr(2) * length of a leg
30-60-90 where if the hypotenuse is length "h", the short side is h/2 and the remaining leg is sqr(3)*h/2