True or false: an angle with a measure of 180 degrees is formed by two opposite rays

The answer to this item is TRUE. If two rays are opposite, they form a straight line. When we measure the angle formed by the straight line formed from one side to the other side, the measurement would be 180 degrees. 

True

Step-by-step explanation:

We have the angle of a straight line is 180 degrees at any point.

At any point on a straight line we have two opposite rays on each side of the point.

Hence the given statement i.e.

an angle with a measure of 180 degrees is formed by two opposite rays

is true

(The notion of  straight line was introduced by ancient mathematicians to represent straight objects (without curvature) with zero width and depth..)

The first fraction is between 27 and 28, closer to 28. The second fraction is between 3 and 4, closer to 4. Compatible numbers in division are numbers that can be divided mentally. 28 divided by 4 is 7. The quotient will be around 7.