1. In this diagram, how many points are coplanar with points A, B and R?

Mathematics

2 answers:

Eddi Din [679]3 years ago

3 0

1. Two points are coplanar if they are located on the flat surface. In this case, points A, B and R are co-planar with point C.

2. It depends on the situation. If you are finding for co-planar points between B and U, there would only be one: point T. Now, if it does not specify which plane, there are three: points R, T and E.

trapecia [35]3 years ago

3 0

Answer:

2 point coplanar with point A,B and R

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sergiy2304 [10]

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75 POINTS!!! WILL MARK BRAINLIEST!!! Find the measure of angle LNM

Harlamova29_29 [7]

m∠LNM = 54°

Here is why:

In this photo there are two important angles with very important features, a central angle and an inscribed angle.

A central angle is an angle that is in the center of the circle, so angle P is a central angle. The arc that is associated with this angle is going to be the same measure as the central angle. I have labeled this in the photo below as blue.

An inscribed angle is an angle that lies on the circle, so angle N is an inscribed angle. The arc that is associated with this angle will be double the amount of the inscribed angle, or the angle is half of the measure of the arc. I have labeled this in the photo below as red.

Since we know that the central angle is 108°, with what we know about central angles we know that arc LM is going to be 108° as well.

We also know that an inscribed angle is half the amount of the arc so...

108 ÷ 2 = 54

m∠LNM = 54°