Which of the following is not always true?

corresponding angles in similar triangles are congruent.

corresponding sides in similar triangles are congruent.

corresponding angles in similar triangles are proportional.

corresponding sides in similar triangles are proportional.

do have an equation or graph or

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: