ISEE Lower Level Math : Plane Geometry
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Example Questions
Example Question #7 : Squares
Which of the following is the perimeter of a square that has an area of 9 square inches?
14 inches
12 inches
9 inches
6 inches
12 inches
If a square has an area of 9 square inches, each side is 3 inches. This is because 3 inches times 3 inches is 9 inches. (The formula for the area of a square is length times hieght.)
Given that a square has 4 sides, we get the perimeter by multiplying 3 by 4, giving us a perimeter of 12 inches.
Example Question #1091 : Isee Lower Level (Grades 5 6) Mathematics Achievement
Debby has a square piece of paper that has an area of 36. What is its perimeter?
For a square, all four sides are equal, and the area is calculated by multiplying one side by itself.
Since the area of the square is 36, we know that one side would be equal to 6 because 
Since each side is 6, the perimeter would be calculated by adding these four sides together.
This would give us:
Or
Example Question #11 : How To Find The Perimeter Of A Square
If the length of one side of a square is equal to 
None of these
The perimeter of a square is equal to the sum of all of its sides.
If a side is 
Example Question #1091 : Isee Lower Level (Grades 5 6) Mathematics Achievement
Billy built a 
The area of a square is the product of one side times another side. Since the sides of a square are equal lengths, this is equal to:
Given that the area was 25 square feet, one side would be the square root of 25 (given that all sides of a square are equaly).
The square root of 25 is 5, which would be the length of one side. Since one side of the enclosure is the wall of Billy's home, Billy only had to build 3 additional sides, each of length 5.
Since 3 times 5 is 15, the correct answer is 15.
Example Question #162 : Geometry
If a square has an area of 100 square feet, what is the perimeter?
When you have the area of a square, you can deduce the length of the sides by taking the square root of the area.
Given that the area is 100 square feet, and that the square root of 100 is 10, each side is 10 feet.
With 4 sides, that means that the perimeter of a square would be 4 times 10, which is 40.
Example Question #163 : Geometry
If the area of a square is 
The area of a square is given by 
Plug in the given information:
Take the square root of both sides:
The perimeter of a square is given by 
Plug in the sidelength that we just calculated:
Example Question #164 : Geometry
If the area of a square is 
The area of a square is given by
Plug in the perimeter given in the question:
Take the square root of both sides:
The perimeter of a square is given by
Plug the sidelength we just calculated into the perimeter formula:
Example Question #1101 : Isee Lower Level (Grades 5 6) Mathematics Achievement
What type of a shape always has 4 equal sides?
Square or rhombus
Rhombus
Square
Quadrilateral
Polygon
Square or rhombus
Squares, rhombuses, rectangles, and quadrilaterals all have four sides, but only squares and rhombuses have four equal sides.A square also has four equal angles (right angles), while a rhombus has two pairs of congruent angles.
A rectangle has four equal angles and two pairs of congruent sides. A quadrilateral refers to any four-sided shape.
Example Question #141 : Plane Geometry
If the area of a square is 81, what is the perimeter?
If the area of a square is 81, the length of one side can be found by taking the square root. Given that the square root of 81 is 9, the length of a side of the square is 9.
The perimeter is the sum of all four sides. Therefore, the perimeter is 
Example Question #142 : Plane Geometry
Find the perimeter of a square whose side length is 
To solve, simply use the formula for the perimeter of a square. Thus,
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