Can someone pls show how to do this is with explanation

Ade and abc are similar. which best explains why the slope of the line between points a and d is the same as the slope between points a and b?

Afarmer has decided to divide his land area in half in order to plant soy and corn. calculate the area of the entire area so he knows how much soil is needed. each bag of soil covers 20 square yards. how many bags should the farmer purchase? (4 points) 1 bag 2 bags 3 bags 4 bags

Find the solution on the interval [0, 2pi)