You calculate the following answer to a problem: 12.655 cm. you are asked to round your answer to four significant figures. which answer is correct?
a. 12.66 cm
b. 12.65 cm
c. 12.60 cm
d. 12.70 cm

a. 12.66 cm

Step-by-step explanation:

Given value: 12.655 cm

Here in the given value there area five significant figures.

If we need to round the value to four significant figures then we need to round the given value to the nearest hundredth.

Since, the last digit (hundredth and thousandth place) is 55 which is nearest to 60.

Then the the required answer after round off to the  nearest hundredth will be :-

the correct option is 2.

step-by-step explanation:

according to the given information triangle abc is a right angle triangle with right angle at a. segment ab is 5 and segment ac is 7. point d is on segment bc and angles adb and adc are right angles.

it is given that triangles abd, cad, and cba are similar.

two triangles are similar if their corresponding sides are proportional.

in triangle cba, using pythagoras theorem

                      )

triangle abd and cba are similar,

                            (2)

triangle cad and cba are similar,

                      )

using (1), (2) and (3), we get

hence proved.

therefore option 2 is correct.

hello umm i don't understand your question can you explain it more pls

step-by-step explanation: