Pre-Algebra : Geometry

Study concepts, example questions & explanations for Pre-Algebra

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Example Questions

Example Question #301 : Geometry

A rectangle measures ten inches along its short side, and twelve inches along its long side. What is the perimeter of the rectangle?

Possible Answers:

twenty four inches

fourty four inches

thirty four inches

fourty five inches

fourty six inches

Correct answer:

fourty four inches

Explanation:

To find the perimeter of any object, simply add the length of each side together.  

The best answer is:

\displaystyle \\P=2s_1+2s_2\\=2(10)+2(12)\\=20+24\\=44

fourty four inches

Example Question #302 : Geometry

A rectangle measures eight inches along its short side, and ten inches along its long side. What is the perimeter of the rectangle?

Possible Answers:

forty six inches

thirty six inches

eighty six inches

twenty six inches

thirty eight inches

Correct answer:

thirty six inches

Explanation:

To find the perimeter of any object, simply add the length of each side together.  

The best answer is:

\displaystyle \\P=2s_1+2s_2\\=2(8)+2(10)\\=16+20\\=36

thirty six inches

Example Question #303 : Geometry

An isosceles triangle measures two inches along its two equal sides, and one inch along its third side. What is the perimeter of the triangle? 

Possible Answers:

five inches

two inches

ten inches

six inches

four inches

Correct answer:

five inches

Explanation:

To find the perimeter of any object, simply add the length of each side together.  

The best answer is:

\displaystyle \\P=s_1+s_2+s_3\\=2+2+1\\=5

five inches

Example Question #304 : Geometry

An equilateral triangle measures three inches along its three equal sides. What is the perimeter of the triangle? 

Possible Answers:

twelve inches

three inches

eighteen inches

eleven inches

nine inches

Correct answer:

nine inches

Explanation:

To find the perimeter of any object, simply add the length of each side together.  

The best answer is:

\displaystyle \\P=s+s+s\\=3s\\=3(3)\\=9

nine inches

Example Question #305 : Geometry

A squares sides measure \displaystyle 8 inches each.  What is its perimeter?

Possible Answers:

\displaystyle 30 inches

\displaystyle 36 inches

\displaystyle 32 inches

\displaystyle 42 inches

\displaystyle 48 inches

Correct answer:

\displaystyle 32 inches

Explanation:

To find the perimeter of any object, simply add the length of each side together.  The best answer is:

\displaystyle 32 inches

Example Question #306 : Geometry

A squares sides measure \displaystyle 16 inches each.  What is its perimeter?

Possible Answers:

\displaystyle 62 square inches

\displaystyle 32 square inches

\displaystyle 60 square inches

\displaystyle 34 square inches

\displaystyle 64 square inches

Correct answer:

\displaystyle 64 square inches

Explanation:

To find the perimeter of any object, simply add the length of each side together.  The best answer is:

\displaystyle 64 square inches

Example Question #26 : Perimeter Of A Rectangle Or Square

A rectangle measures \displaystyle 4 inches along its short side, and \displaystyle 15 inches along its long side.  What is the perimeter of the rectangle?

Possible Answers:

\displaystyle 50 square inches

\displaystyle 48 square inches

\displaystyle 38 square inches

\displaystyle 28 square inches

\displaystyle 52 square inches

Correct answer:

\displaystyle 38 square inches

Explanation:

To find the perimeter of any object, simply add the length of each side together.  The best answer is:

\displaystyle 38 square inches

Example Question #23 : Perimeter Of A Rectangle Or Square

A rectangle measures \displaystyle 8 inches along its short side, and \displaystyle 12 inches along its long side.  What is the perimeter of the rectangle?

Possible Answers:

\displaystyle 30 square inches

\displaystyle 34 square inches

\displaystyle 40 square inches

\displaystyle 44 square inches

\displaystyle 56 square inches

Correct answer:

\displaystyle 40 square inches

Explanation:

To find the perimeter of any object, simply add the length of each side together.  The best answer is:

\displaystyle 40 square inches

Example Question #307 : Geometry

A square flower bed measures \displaystyle 7.2 feet along its edge.  What is the perimeter of the bed?

Possible Answers:

\displaystyle 24.8 feet

\displaystyle 22.8 feet

\displaystyle 28.8 feet

\displaystyle 28.2 feet

\displaystyle 38.8 feet

Correct answer:

\displaystyle 28.8 feet

Explanation:

To find the perimeter of any object, simply add the length of each side together.  The best answer is:

\displaystyle 28.8 feet

Example Question #27 : Perimeter Of A Rectangle Or Square

A rectangle measures \displaystyle 4.5 inches along its short side, and \displaystyle 5.4 inches along its long side.  What is the perimeter of the rectangle?

Possible Answers:

\displaystyle 17.8 feet

\displaystyle 20.8 feet

\displaystyle 18.8 feet

\displaystyle 19.8 feet

\displaystyle 19.9 feet

Correct answer:

\displaystyle 19.8 feet

Explanation:

To find the perimeter of any object, simply add the length of each side together.  The best answer is:

\displaystyle 19.8 feet

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