All Advanced Geometry Resources
Example Questions
Example Question #1 : Graphing
Solve and graph the following inequality:
To solve the inequality, the first step is to add to both sides:
The second step is to divide both sides by :
To graph the inequality, you draw a straight number line. Fill in the numbers from to infinity. Infinity can be designated by a ray. Be sure to fill in the number , since the equation indicated greater than OR equal to.
The graph should look like:
Example Question #201 : Coordinate Geometry
Points and lie on a circle. Which of the following could be the equation of that circle?
If we plug the points and into each equation, we find that these points work only in the equation . This circle has a radius of and is centered at .
Example Question #1 : Graphing
Which of the following lines is perpendicular to the line ?
The key here is to look for the line whose slope is the negative reciprocal of the original slope.
In this case, is the negative reciprocal of .
Therefore, the equation of the line which is perpendicular to the original equation is:
Example Question #1 : How To Graph A Two Step Inequality
Which inequality does this graph represent?
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;
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The two lines represented are and . The shaded region is below both lines but above
Example Question #1 : How To Graph A Two Step Inequality
What is the area of the shaded region for the following inequality:
;
This inequality will produce the following graph:
The shaded area is a triangle with base 7 and height 2.
To find the area, plug these values into the area formula for a triangle, .
In this case, we are evaluating , which equals 7.
Example Question #291 : Advanced Geometry
What is the area of the shaded region for this system of inequalities:
;
Once graphed, the inequality will look like this:
To find the area, it is easiest to consider it as 2 congruent triangles with base 6 and height 3.
The total area will then be
, or just .
Example Question #1 : How To Graph A Two Step Inequality
Find the -intercept for the following:
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Example Question #201 : Graphing
Let D be the region on the (x,y) coordinate plane that contains the solutions to the following inequalities:
, where is a positive constant
Which of the following expressions, in terms of , is equivalent to the area of D?
Example Question #1 : Kites
The area of the rectangle is , what is the area of the kite?
The area of a kite is half the product of the diagonals.
The diagonals of the kite are the height and width of the rectangle it is superimposed in, and we know that because the area of a rectangle is base times height.
Therefore our equation becomes:
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We also know the area of the rectangle is . Substituting this value in we get the following:
Thus,, the area of the kite is .
Example Question #1 : Kites
Given: Quadrilateral such that , , , is a right angle, and diagonal has length 24.
Give the length of diagonal .
None of the other responses is correct.
The Quadrilateral is shown below with its diagonals and .
. We call the point of intersection :
The diagonals of a quadrilateral with two pairs of adjacent congruent sides - a kite - are perpendicular; also, bisects the and angles of the kite. Consequently, is a 30-60-90 triangle and is a 45-45-90 triangle. Also, the diagonal that connects the common vertices of the pairs of adjacent sides bisects the other diagonal, making the midpoint of . Therefore,
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By the 30-60-90 Theorem, since and are the short and long legs of ,
By the 45-45-90 Theorem, since and are the legs of a 45-45-90 Theorem,
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The diagonal has length
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