How can knowing the greatest common factor and least common multiple when adding subtracting and multiplying fractions

Which triangle congruence postulate or theorem justifies my claim that the steps i made using construction paper and scissors produce an isosceles triangle? was it sss, sas, asa, aas, or hl?

Evaluate cos2θ for cosθ = square root of 3/2

If a runner who runs at a constant speed of p miles per hour runs a mile in exactly p minutes what is the integer closest to the value p