HSPT Math : Geometry

Study concepts, example questions & explanations for HSPT Math

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Example Questions

Example Question #221 : Geometry

A sphere has diameter 12. What is 75% of its volume?

Possible Answers:

Correct answer:

Explanation:

The radius of a sphere is half its diameter, which here is 12, so the radius is 6. The volume of the sphere can be calculated by setting  in the formula:

75% of this is

Example Question #222 : Geometry

Find the volume of a rectangular prism with the following information:

 

Possible Answers:

Correct answer:

Explanation:

The formula for volume of a rectangular prism is,

 .  

For this problem, since

the solution would be 

.

Example Question #223 : Geometry

What is the measure of a right angle?

Possible Answers:

Correct answer:

Explanation:

The measure of a right angle is  degrees.

Example Question #224 : Geometry

Triangle_a

Figure NOT drawn to scale.

If  and , evaluate .

Possible Answers:

More information is needed to solve the problem.

Correct answer:

Explanation:

The measure of an exterior angle of a triangle is the sum of the measures of its remote interior angles, so 

Example Question #771 : Ssat Upper Level Quantitative (Math)

Triangle_a

Figure NOT drawn to scale.

If  and , evaluate .

Possible Answers:

Correct answer:

Explanation:

The measure of an exterior angle of a triangle is the sum of the measures of its remote interior angles, so 

Example Question #772 : Ssat Upper Level Quantitative (Math)

If the vertex angle of an isoceles triangle is , what is the value of one of its base angles?

Possible Answers:

Correct answer:

Explanation:

In an isosceles triangle, the base angles are the same. Also, the three angles of a triangle add up to .

So, subtract the vertex angle from . You get .

Because there are two base angles you divide  by , and you get .

Example Question #3 : How To Find An Angle In An Acute / Obtuse Triangle

Triangle

Note: Figure NOT drawn to scale.

Refer to the above diagram. 

Which of the following could be a measure of  ?

Possible Answers:

All of the other choices give a possible measure of .

Correct answer:

Explanation:

The measure of an exterior angle of a triangle is the sum of the measures of its remote interior angles, so 

.

We also have the following constraints:

Then, by the addition property of inequalities,

Therefore, the measure of  must fall in that range. Of the given choices, only  falls in that range.

Example Question #773 : Ssat Upper Level Quantitative (Math)

Triangle

Refer to the above diagram. 

Which of the following could be a measure of  ?

Possible Answers:

All of the other responses are correct.

Correct answer:

All of the other responses are correct.

Explanation:

The measure of an exterior angle of a triangle is the sum of the measures of its remote interior angles, so 

or 

Therefore, the maximum value of  is the least possible value of  subtracted from the greatest possible value of :

The minimum value of  is the greatest possible value of  subtracted from the least possible value of :

Therefore, 

Since all of the choices fall in this range, all are possible measures of .

Example Question #225 : Geometry

One angle of a right triangle has measure . Give the measures of the other two angles.

Possible Answers:

This triangle cannot exist.

Correct answer:

This triangle cannot exist.

Explanation:

A right triangle must have one right angle and two acute angles; this means that no angle of a right triangle can be obtuse. But since , it is obtuse. This makes it impossible for a right triangle to have a  angle.

Example Question #226 : Geometry

One angle of a right triangle has measure . Give the measures of the other two angles.

Possible Answers:

This triangle cannot exist.

Correct answer:

Explanation:

One of the angles of a right triangle is by definition a right, or , angle, so this is the measure of one of the missing angles. Since the measures of the angles of a triangle total , if we let the measure of the third angle be , then:

The other two angles measure .

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