Use this regular pentagon to answer the questions. What is the measure of one of the central angles in the
regular pentagon?
What is the measure of one of the congruent base
angles in triangle ABC?
72 4°
A
C
B

6/20

step-by-step explanation:

5/20 so 25%

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: