Is the measure of Z1 equal to the measure of Z2?
Why?

George is 187 cm tall. his son, ralph, is 142 cm tall. who casts the longer shadow. george when the sun is 65° above the horizon, or ralph when the sun is 56° above the horizon? how much longer? (nearest centimeter)

How to choose the sign of the radical in the denominator of the formula for the distance from a point to a line.

When you answer this can you explain