Asingle fair die is tossed what is the probability of rolling a number different from 7

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?

The perimeter of a movie screen is 54 meters. the screen is 18 meters wide. how tall is it?

Mr. rose asked his students to draw a quadrilateral with 4 unequal sides. draw an example of this kind of quadrilateral.