Answer this question for me i know it's easy but i can't risk getting it wrong my last question depends on it all

Answer this question, only if you know the answer. 30 points and brainliest!

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?

In priyas math class there are 10 boys and 15 girls. what is the ratio of boys to girls in priyas math class? express your answer as a decimal