HSPT Math : Geometry

Study concepts, example questions & explanations for HSPT Math

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Example Questions

Example Question #51 : Geometry

The hypotenuse of a right triangle is  feet; it has one leg  feet long. Give its area in square inches.

Possible Answers:

Correct answer:

Explanation:

The area of a right triangle is half the product of the lengths of its legs, so we need to use the Pythagorean Theorem to find the length of the other leg. Set :

The legs have length  and  feet; multiply both dimensions by  to convert to inches:

 inches

 inches.

Now find half the product:

Example Question #161 : Geometry

Which of the following is equal to the area of a rectangle with length  meters and width  meters?

Possible Answers:

Correct answer:

Explanation:

Multiply each dimension by  to convert meters to centimeters:

Multiply these dimensions to get the area of the rectangle in square centimeters:

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

Trapezoid

The above diagram depicts a rectangle  with isosceles triangle . If  is the midpoint of , and the area of the orange region is , then what is the length of one leg of  ?

Possible Answers:

Correct answer:

Explanation:

The length of a leg of  is equal to the height of the orange region, which is a trapezoid. Call this length/height .

Since the triangle is isosceles, then , and since  is the midpoint of , . Also, since opposite sides of a rectangle are congruent, 

Therefore, the orange region is a trapezoid with bases  and  and height . Its area is 72, so we can set up and solve this equation using the area formula for a trapezoid:

 

This is the length of one leg of the triangle.

Example Question #51 : Geometry

A trapezoid has a height of  inches and bases measuring  inches and  inches. What is its area?

Possible Answers:

Correct answer:

Explanation:

Use the following formula, with :

Example Question #241 : Ssat Middle Level Quantitative (Math)

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

Possible Answers:

Correct answer:

Explanation:

The formula for the area of a triangle is \dpi{100} Area=\frac{1}{2}\times base\times height.

Plug the given values into the formula to solve:

\dpi{100} Area=\frac{1}{2}\times 12\times 3

\dpi{100} Area=\frac{1}{2}\times 36

\dpi{100} Area=18

Example Question #52 : Geometry

Find the area of a square with side length 1.

Possible Answers:

Correct answer:

Explanation:

To solve, simply use the formula for the area of a square. Thus,

Example Question #53 : Geometry

Find the area of a triangle with height 6 and base 3.

Possible Answers:

Correct answer:

Explanation:

To solve, simply use the formula for the area of a triangle.

Given the height is 6 and the base is 3, substitute these values into area of a triangle formula.

Thus,

Example Question #55 : Geometry

Square a

What is 60% of the area of the above square?

Possible Answers:

Correct answer:

Explanation:

The area of a square, it being a rhombus, is the product of the lengths of its diagonals. The diagonals are of the same length, so both diagonals have length 8, and the area of the square is

.

60% of 32 is equal to 32 multiplied by , which is

.

Example Question #56 : Geometry

A circle has radius 12. Which of the following gives 40% of the area of this circle?

Possible Answers:

Correct answer:

Explanation:

The area of a circle with radius  is 

.

The radius of the circle is, so the area is

.

40% of this is 

Example Question #54 : Geometry

A rectangle measures six feet in width and four and one-half feet in height. Give its area in square yards.

Possible Answers:

81 square yards

3 square yards

9 square yards

243 square yards

Correct answer:

3 square yards

Explanation:

Convert each dimension from feet to yards by dividing by conversion factor 3:

Their product is the area in square yards:

.

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