If triangle abc is similar to triangle def then we know the following has to be true a all three angles must be equal
b corresponding sides must be in the same ratio
c all three angles must be equal and corresponding sides must be equal
d all three angles must be equal and corresponding sides must be in the same ratio

See below.

Step-by-step explanation:

None of the statements are correct.

If two triangles are similar, then each pair of corresponding angles is congruent, and the lengths of each pair of corresponding sides is in the same ratio.

Maybe it is meant for the correct answer to be choice d, but as stated above, no choice is correct.

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: