< a and < b are complementary and congruent. what is the measure of each of these angles?

90°
45°
50°
180°

< A = < B = 45°

Step-by-step explanation:

First, you have to  both concepts: congruent and complementary.

We say two angles are complementary when together they made a 90° angle.

We say two angles are congruent when both have the same amplitude.

For two angles to be complementarity and congruent both have to be the same and together be 90°

So 90°/2=45°

Both angles are 45°

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: