All HSPT Math Resources
Example Questions
Example Question #2042 : Hspt Mathematics
The three angles of a triangle are labeled , , and . If is , what is the value of ?
Given that the three angles of a triangle always add up to 180 degrees, the following equation can be used:
Example Question #2041 : Hspt Mathematics
An isosceles triangle has a vertex angle of seventy degrees. What is the angle of one of the other angles?
A triangle has three sides and three angles, which add up to 180 degrees.
An isosceles triangle must have 2 equal sides and 2 equal base angles. Given the vertex angle is 70 degrees, subtract this angle by 180.
Since the other 2 base angles must equal to each other in an isoceles triangle, divide 110 with 2 to get the measure of the other angles.
The base angles must be degrees each.
As a check:
Example Question #2042 : Hspt Mathematics
What is the measure of an interior angle of a regular pentagon?
The formula to find the sum of total interior angles of a polygon is:
Since there are five sides in the pentagon, substitute .
This is the sum of the interior angles of a pentagon. To find an interior angle, divide by five since there are five interior angles in a pentagon.
Example Question #11 : Geometry
is a straight line. intersects at point . If measures 120 degrees, what must be the measure of ?
degrees
degrees
degrees
degrees
None of the other answers
degrees
& must add up to 180 degrees. So, if is 120, (the supplementary angle) must equal 60, for a total of 180.
Example Question #1451 : Concepts
Find the total interior degrees in an octagon.
To solve, simply use the formula for the total of the interior angles where n is the number of vertices.
In this particular case .
Thus,
Example Question #1453 : Concepts
Two angles are supplementary. The measure of one angle is 23 degrees less than twice that of the second. Give the lesser of the measures of the two angles.
Let be the measure of one of the angles. The measure of the other angle is 23 degrees less than twice this, which is . The angles are supplementary, meaning that their measures add up to 180. Therefore:
The other angle has measure .
The lesser of the two measures is requested, so the correct response is .
Example Question #1452 : Concepts
An angle of measure is supplementary to an angle of measure .
An angle of measure is supplementary to an angle of what measure?
Two angles are supplementary if the sum of their degree measures is 180.
An angle supplementary to an angle of measure has measure
,
so , and .
An angle of measure is supplementary to an angle of measure
,
the correct choice.
Example Question #1453 : Concepts
An angle of measure is supplementary to an angle of measure .
An angle of measure is supplementary to an angle of what measure?
Two angles are supplementary if the sum of their degree measures is 180.
An angle supplementary to an angle of measure has measure
,
so , and .
An angle of measure is supplementary to an angle of measure
,
the correct choice.
Example Question #1454 : Concepts
In parallelogram ,
and
Express in terms of .
and , as adjacent angles of a parallelogram, have degree measures totaling , so
Example Question #272 : Geometry
In parallelogram ,
and
Express in terms of .
and , as adjacent angles of a parallelogram, have the same degree measure, so