Find the length of the missing side (nearest tenth)

Mathematics

2 answers:

Pepsi [2]3 years ago

8 0

Answer:

13.4

Step-by-step explanation:

myrzilka [38]3 years ago

3 0

You need to use the Pythagorean Theorem for this: c squared = a squared + b squared. C is the hypotenuse, or the side not making a right angle. In this case, that is your missing side. We plug it in.

C squared = 10 squared + 9 squared.
C squared = 100 + 81.
C squared = 181
Now, to get c squared to just c, we find it’s square root.
The square root of c squared is c, while the square root of 181 is 13.6 approximately.

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Find measure of Arc BC

iren2701 [21]

Answer:

arc BC = 140

Step-by-step explanation:

Comment

Pick a point inside the circle. It should look like this point is the center of the circle. Call this point D. Draw lines CD and BD

CD makes a right angle with AC

BD makes a right angle with AB

The central angle formed by The given information above is

<BDC = 360 - 90 - 90 - 40