Which three lengths could be the lengths of the sides of a triangle? 8 cm, 23 cm, 11 cm 13 cm, 5 cm, 18 cm 9 cm, 15 cm, 22 cm 21 cm, 7 cm, 7 cm

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: