How do i show the work to find the area of this composite figure. the answer is 81.8km i just don’t know how to show the work.

Aladder that is 20ft long is leaning against the side of a building. if the angle formed between the ladder and the ground is 75 degrees how far is the bottom of the from the base of the building?

Asix-sided number cube is rolled twice. what is the probability that the first roll is an even numbe and the second roll is a number greater than 4?

Solve the inequaliy: (x^2+2)(x−2)^2(6−2x)> 0