A farmer has just tilled his 54-meter by 72-meter field. To survey his field, the farmer begins in one corner and walks the length of the field. He then turns and walks the width before crossing diagonally across the field to the original corner. How far does the farmer walk?

step-by-step explanation:

explanation:

infrared radiation has wavelength in the range between 700 nm and 1 mm. lets' convert these values into scientific notation, keeping in mind that:

let's start from the lower value, we have:

(we moved the dot two places to the left, so we increased the exponent by 2 units, from -9 to -7)

the higher value is:

so, the range of wavelength of infrared radiation is: