True or false:
“if i cut off a piece of a shape, it reduce its perimeter and area. explain how.”
can someone explain what i should write?

The lines shown below are parallel. if the green line has a slope of -1, what is the slope of the red line?

You are standing next to a really big circular lake. you want to measure the diameter of the lake, but you don't want to have to swim across with a measuring tape! you decide to walk around the perimeter of the lake and measure its circumference, and find that it's 400\pi\text{ m}400? m. what is the diameter dd of the lake?

The letters g e o r g i a are placed in a bag . if you picked a card and knew it was a vowel , what is the probability that it is an a ?