HSPT Math : HSPT Mathematics

Study concepts, example questions & explanations for HSPT Math

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Example Questions

Example Question #211 : Plane Geometry

A rectangular garden has an area of . Its length is  meters longer than its width. How much fencing is needed to enclose the garden?

Possible Answers:

Correct answer:

Explanation:

We define the variables as  and .

We substitute these values into the equation for the area of a rectangle and get

 or 

Lengths cannot be negative, so the only correct answer is . If , then

Therefore, .

Example Question #261 : Hspt Mathematics

What is the perimeter of a square with a diagonal of ?

Possible Answers:

Correct answer:

Explanation:

To find the perimeter of the square, find the length of the side.  Write the formula to find the length of the side.

Substitute the diagonal and solve for the side.

 

First, square each side to get rid of the square root. 

Divide 2 by each side to isolate the 

Take the square root of each side.

Since there are four sides in a square, multiply the side length by four to get the perimeter.

Example Question #262 : Hspt Mathematics

An equilateral triangle has a length of .  What is the perimeter?

Possible Answers:

Correct answer:

Explanation:

The perimeter of an equilateral triangle is three times the length of its side.

Example Question #263 : Hspt Mathematics

What is the perimeter of a square with a side length of ?

Possible Answers:

Correct answer:

Explanation:

Write the perimeter formula for a square.

Substitute the side length in the formula and simplify.

Example Question #11 : How To Find The Perimeter Of A Figure

A circle has radius 8. The circumference of the circle is 40% of what number?

Possible Answers:

Correct answer:

Explanation:

The circumference of a circle is its radius mulitplied by . The radius is 8, so the circumference is 

.

To find the number of which this is 40%, divide this by 40%, or :

Example Question #12 : How To Find The Perimeter Of A Figure

.

 is a right angle.

.

Is  scalene, isosceles, or equilateral - or can it be determined?

Possible Answers:

Whether  is scalene, isosceles, or equilateral cannot be determined.

 is an equilateral triangle.

 is a isosceles triangle, but not equilateral.

 is a scalene triangle.

Correct answer:

 is a isosceles triangle, but not equilateral.

Explanation:

Corresponding angles of similar triangles are congruent, so 

The degree measures of the angles of a triangle total 180, so

Since  and  are congruent, by the Isosceles Triangle Theorem, 

making  isosceles.

Example Question #263 : Problem Solving

A ladder 30 feet long leans against a house. The top of the ladder is feet above the ground. In terms of , how far along the ground is the bottom of the ladder from the house?

Possible Answers:

Correct answer:

Explanation:

The ladder, which is 30 feet long, is the hypotenuse of a right triangle whose legs are the line from the top of the ladder to the ground, which has length feet, and the line from the bottom of the ladder horizontally to the house, whose length we will call feet. See the diagram below.

Ladder

 

 

 

 

By the Pythagorean Theorem,

Solving for :

, the correct choice.

Example Question #6 : Parallelograms

What is the perimeter of the polygon below? 

A

 

Possible Answers:

Correct answer:

Explanation:

To find the area of a perimeter, we add all of the side lengths together. 

Example Question #7 : Parallelograms

What is the perimeter of the polygon below? 

B

 

Possible Answers:

Correct answer:

Explanation:

To find the area of a perimeter, we add all of the side lengths together. 

Example Question #8 : Parallelograms

What is the perimeter of the polygon below? 

C

 

Possible Answers:

Correct answer:

Explanation:

To find the area of a perimeter, we add all of the side lengths together. 

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