Answer:

Step-by-step explanation:
Since the chord is a tangent to the smaller circle, it will meet the radius of the smaller circle at right angle.
Let
be the length of half of the chord. See diagram in attachment.
Then from Pythagoras Theorem,




We take the positive square root of both sides to obtain,

The length of the chord is

The correct answer is A
Rounded to the nearest million: 3 million
Power of ten this number is:3 times 10 6
The height of a door will be around 6 feet and 8 inches, so about 7 feet. You will need to convert this to meters. To do this, you should first know that 1 meter = 3.28 feet. Now, divide 7 by 3.28:
7/3.28 = 2.134
So, a reasonable estimate would be 2 meters.
Answer:
Female
Step-by-step explanation:
...look at those numbers dude
The base is 5 because when you divide 31.5 by 6.3 it's 5