<span>ratio of their perimeters and the ratio of their areas would be </span>5:9 and 25:81
Answer:
This is a question you should know in trig.
You should search up how to solve for simple trig functions
The cos of 60 degrees is 1/2 just because you asked
Flat and idk the other one
Answer:
Variance.
Step-by-step explanation:
that is the variance of the data.
The square root of the variance is the Standard Deviation.
Correct statements are:
If it is reflected across the y-axis, its length still will be 12 units.
If it is rotated 270° about the origin, its length still will be 12 units.
If it is translated 15 units up, its length still will be 12 units.
<u>Step-by-step explanation:</u>
Whatever it may be rotation, reflection or translation, the size of the line will never change. So length of the line is same as 12 units in the image.
So the wrong statements are
If its reflected across y = -x then the length will no longer be 12 units.
If it is rotated 90° about the origin, then the length will no longer be 12 units.
If it is translated 18 units to the right, then the length will no longer be 12 units.
