Other Quadrilaterals - ISEE Upper Level Mathematics Achievement
Card 0 of 5
Three of the interior angles of a quadrilateral measure 
, 
, and 
. What is the measure of the fourth interior angle?
Three of the interior angles of a quadrilateral measure
The measures of the angles of a quadrilateral have sum 
. If 
is the measure of the unknown angle, then:
The angle measures 
.
The measures of the angles of a quadrilateral have sum
The angle measures
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The angles of a quadrilateral measure 
. Evaluate 
.
The angles of a quadrilateral measure
The sum of the degree measures of the angles of a quadrilateral is 360, so we can set up and solve for 
in the equation:
The sum of the degree measures of the angles of a quadrilateral is 360, so we can set up and solve for
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The four angles of a quadrilateral have the following value: 79 degrees, 100 degrees, 50 degrees, and 
degrees. What is the value of 
?
The four angles of a quadrilateral have the following value: 79 degrees, 100 degrees, 50 degrees, and
Given that there are 360 degrees when all the angles of a quadrilateral are added toghether, this problem can be solved with the following equation:
Given that there are 360 degrees when all the angles of a quadrilateral are added toghether, this problem can be solved with the following equation:
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In a quadrilateral, the angles have the following values:
.
What is the value of 
?
In a quadrilateral, the angles have the following values:
What is the value of
Given that there are 360 degrees when the angles of a quadrilateral are added together, it follows that:
Given that there are 360 degrees when the angles of a quadrilateral are added together, it follows that:
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The perimeter of a quadrilateral is 86. The four sides measure
.
What is the value of 
?
The perimeter of a quadrilateral is 86. The four sides measure
What is the value of
Given that the perimeter is 86, the sides of the quadrilateral will all add up to this amount.
The first step is the add together all the integers.
Next, we subtract 70 from each side.
We reduce the left side of the equation:
Now, we divide each side by 4. This leaves:
Given that the perimeter is 86, the sides of the quadrilateral will all add up to this amount.
The first step is the add together all the integers.
Next, we subtract 70 from each side.
We reduce the left side of the equation:
Now, we divide each side by 4. This leaves:
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