Right angle fcd intersects ab and ce at point c. a) they are congruent and complementary. b) they are congruent and supplementary. c) they are complememtary but not necessarily congruent d) they are supplementary but not necessarily congruent.

Its A

Step-by-step explanation:

They are congruent and complementary.

They are congruent and complementary

Step-by-step explanation:

Edge 2020

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: