. AB and PQ are lines of length 6 cm
Shape
a) AX : AB = 1:2
Mark where point X would be on the line, with a cross.
point
point
А
B.
Clea
b) PX: XQ = 1:2
Mark where point X would be on the line, with a cross.

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:

m∠5 + m∠3 = m∠1   is true.

m∠5 + m∠6 = 180 is true

m∠2 +m∠3 = m∠6   is true

m∠2 +m∠3 +m∠5 = 180   is true

its kinda hard to answer this when we dont have all the information that we need.