PLEASE ANSWER THEN I'LL MARK U 1. When measuring an angle on a protractor, where must the vertex be placed?
2. What is a statement that is accepted to be true without having to formally prove it?
3. What is the measurement of a straight angle?​

Multiplying an even number of negative numbers gives an answer that is choose from:

Match the scale and the actual area to the area of the corresponding scale drawing. scale: 1 inch to 4 feet actual area: 128 square feet scale: 1 inch to 7 feet actual area: 147 square feet scale: 1 inch to 8 feet actual area: 256 square feet scale: 1 inch to 5 feet actual area: 225 square feet area of scale drawing scale and actual area scale drawing area: 3 square inches arrowright scale drawing area: 8 square inches arrowright scale drawing area: 4 square inches arrowright scale drawing area: 9 square inches arrowright

What are two numbers that have a sum of 15?