0, a square has 4 right angles
Answer:
When two or more computers are connected together so they can communicate with one another, they form a network. The largest computer network in the world in the Internet.
The <span>key that will cause the windows boot manager to appear as long as it is pressed during the windows startup process is the S</span>pacebar. T<span>he </span>spacebar<span> or </span>space bar<span> is a long horizontal key on the lower edge of a keyboard that is always the largest and longest key on the keyboard.</span>
I could be wrong but I'm pretty sure it's A. Tab