The area on the thermometer marked with the letter a is called the

answer:

scale.

explanation:

the area on the thermometer marked with the letter a is called the scale. the scale of temperature is a way to measure temperature quantitatively. a thermometer is a device that measures temperature.

answer:

it is called a scale. the scale allows the thermometer to measure temperature quantitatively.

double the distance = divide strength by 4

i already answered it by 34/s