When 2 lines cross, 2 pairs of vertical angles are formed. what is the sum of all 4 angles 180,270,360,540

they used 313 gallons of paint

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: