a 20 foot ladder against a wall so that it forms an angle of 72 degrees with the ground. How high up the wall does the ladder reach? Round your answer to the nearest 10th of a foot of necessary

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?

Afurniture manufacturer produces chairs and sofas. each chair requires 10 yards of fabric, and each sofa requires 20 yards of fabric. the manufacturer has 300 yards of fabric available. to fulfill orders, the number of sofas must be at least twice the number of chairs. let x be the number of chairs and y the number of sofas. which inequalities are described in the problem? check all of the boxes that apply

The volume of a sphere is increased by 6%. calculate the corresponding percentage increased in it area.