QUESTION #16

QUESTION #16:

• The area of a square is 36 square inches.
• What is its perimeter, in inches?

POSSIBLE ANSWERS:

• A) 6
• B) 9
• C) 12
• D) 18
• E) 24

SOLVING THE EQUATION:

• Your first step is to draw out the square.

SOLVING THE EQUATION:

• Next you have to find the equation for area.
• The equation for area is LxW
• L-length and W-Width

SOLVING THE EQUATION

• All 4 sides of a square measure the same
• Making length and width the same numbers
• To solve you have to take the square root of the area

SOLVING THE EQUATION:

• The square root of 36 is 6
• So each side measures at 6
• Your next step is to add up all the sides

SOLVING THE EQUATION

• After adding up all the sides your answer should be 24
• Or answer E

COMMON MISTAKES

• Many people will see the 4 sides and 36 and choose to divide
• 36/4=9
• Another common error is to square root and choose 6 as the answer
• Remember that perimeter is the sum of all 4 sides of the square.

HELPFUL RESOURCES

• www.algebra.com
• www.mathopenref.com
• Ask your teacher.

ANY QUESTIONS?