1. When a value is multiplied or divided by 1, the value is

(a) Increased.

(b) Unchanged.

(c) Decreased.

(d) None of the above.

2. The lateral surface area of a solid is

(a) Always equal to total surface area.

(b) Never equal to total surface area.

(c) Usually equal to total surface area.

(d) Rarely equal to total surface area.

3. Accuracy is

(a) The same as precision.

(b) The smallest unit with which a measurement is made.

(c) The number of significant digits.

(d) All of the above.

4. When multiplying or dividing two or more measurements, the units

(a) Must be the same.

(b) Must be different.

(c) Can be different.