HSPT Math : HSPT Mathematics

Study concepts, example questions & explanations for HSPT Math

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Example Questions

Example Question #3 : Geometry

What is the area of a triangle with a base of 22 cm and a height of 9 cm? 

Possible Answers:

Correct answer:

Explanation:

Use the area of a triangle formula

Plug in the base and height. This gives you .

Example Question #1 : How To Find The Area Of A Right Triangle

Right Triangle A has hypotenuse 25 inches and one leg of length 24 inches; Right Triangle B has hypotenuse 15 inches and one leg of length 9 inches; Rectangle C has length 16 inches. The area of Rectangle C is the sum of the areas of the two right triangles. What is the width of Rectangle C?

Possible Answers:

Correct answer:

Explanation:

The area of a right triangle is half the product of its legs. In each case, we know the length of one leg and the hypotenuse, so we need to apply the Pythagorean Theorem to find the second leg, then take half the product of the legs:

 

Right Triangle A:

The length of the second leg is

 inches.

The area is 

 square inches.

 

Right Triangle B:

The length of the second leg is

 inches.

The area is 

 square inches.

 

The sum of the areas is  square inches.

 

The area of a rectangle is the product of its length and its height. Therefore, the height is the quotient of the area and the length, which, for Rectangle C, is  inches.

 

Example Question #4 : Geometry

Right Triangle A has legs of lengths 10 inches and 14 inches; Right Triangle B has legs of length 20 inches and 13 inches; Rectangle C has length 30 inches. The area of Rectangle C is the sum of the areas of the two right triangles. What is the height of Rectangle C?

Possible Answers:

Insufficient information is given to determine the height.

Correct answer:

Explanation:

The area of a right triangle is half the product of its legs. The area of Right Triangle A is equal to  square inches; that of Right Triangle B is equal to  square inches. The sum of the areas is  square inches, which is the area of Rectangle C.

 

The area of a rectangle is the product of its length and its height. Therefore, the height is the quotient of the area and the length, which, for Rectangle C, is  inches.

Example Question #5 : Geometry

Heron

Give the area of the above triangle.

Possible Answers:

Correct answer:

Explanation:

By Heron's formula, the area of a triangle given its sidelengths is 

Where  are the sidelengths and 

 ,

or half the perimeter.

Setting 

Therefore,

Example Question #6 : Geometry

Heron

Give the area of the above triangle.

Possible Answers:

Correct answer:

Explanation:

By Heron's formula, the area of a triangle given its sidelengths is 

,

where  are the sidelengths and 

 ,

or half the perimeter.

Setting 

.

Therefore,

 

Example Question #1781 : Hspt Mathematics

Find the area of the following parallelogram:

Isee_mid_question_42

Note: The formula for the area of a parallelogram is .

Possible Answers:

Correct answer:

Explanation:

The base of the parallelogram is 10, while the height is 5.

Example Question #1 : Parallelograms

Find the area:

Question_5

 

Possible Answers:

Correct answer:

Explanation:

The area of a parallelogram can be determined using the following equation:

Therefore,

 

Example Question #1 : How To Find The Area Of A Rectangle

What is the area of a rectangle with length  and width ?

Possible Answers:

Correct answer:

Explanation:

The formula for the area, , of a rectangle when we are given its length, , and width, , is .

To calculate this area, just multiply the two terms.

Example Question #11 : Geometry

Order the following from least area to greatest area:

Figure A: A rectangle with length 10 inches and width 14 inches.

Figure B: A square with side length 1 foot.

Figure C: A triangle with base 16 inches and height 20 inches.

Possible Answers:

Correct answer:

Explanation:

Figure A has area  square inches.

Figure B has area  square inches, 1 foot being equal to 12 inches.

Figure C has area  square inches.

The figures, arranged from least area to greatest, are A, B, C.

Example Question #2 : How To Find The Area Of A Rectangle

Prism

Give the surface area of the above box in square inches.

Possible Answers:

Correct answer:

Explanation:

Use the surface area formula, substituting  :

 square inches

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