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# Geometry Questions and Answers (Q&A)

J.Spencer, Knowledge enthusiast
Euclidean geometry is the study of shapes, sizes, and positions based on the principles and assumptions stated by Greek Mathematician Euclid of Alexandria. It is also called the geometry of flat...Read More

Samia Al Shami, 0000

To calculate the midpoint of a line in the coordinate sysytem we do

x AB= Xb+Xa/2 y AB= Ya+ Yb/2

xAB=7/2 y AB= 5

Joshmoore, 0000
How can you tell for certain whether they are coplanar or not? If it isn't drawn in the box it could still be on the plane, right? There should be a "Not enough info" answer.

Grootlul, 0000
There is no indication telling us that the planes are parallel. There should be symbols on the lines to indicate that they are parallel. I have been taught to always assume that if something is not...Read More

Agentred, 0000
The correct answer show be 100 because a quadrilateral has a interior angle measure of 360 degrees. The angles given are 50 and 80 which equal 130. So the individual would do 180-80 giving you 100....Read More

This answer is incorrect, there is no way that you can get -8b. The correct answer is 11a+2b

Its 80 because 3 is the vertical angle of 1, and then 7 is its outside corresponding angle.

J.Barbara, 0000
It can be tricky to calculate the cosine of an angle, however, some ways can make the process easier. The easiest way to calculate the cosine of an angle is to find the length of an adjacent side...Read More

S. Leo, Content Blogger
Arithmetic is the most elementary division of mathematics. It involves the simple manipulation of numbers, which refers to adding, subtracting, multiplying, and dividing. Geometry, on the other...Read More

The figure is Translated right by 4 and

Translated up by 2

C. Bernthal, Teacher
The answer to this question is letter D. If you are not aware of what a secant is, this is a line that will intersect a circle in two different points. If in case there are secants that interact...Read More

Youssefpoulis, Teacher
But it is asking for something that is not true so it should be C

Darcy.dor., Teacher
No because the corresponding parts wouldn't match up according to that statement. Like angle A doesn't match with angle F. For it to be true, the statement would have to be written like this:...Read More

Two lines that are perpendicular to the same line are parallel to each other  