GMAT Math : Squares
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Example Questions
Example Question #21 : Squares
The ratio of square A to square B is 3:1. Find the perimeter of square B.
- The area of square A is
.
- The length of the diagonal of square B is
.
Each statement alone is sufficient to answer the question.
Statements 1 and 2 are not sufficient, and additional data is needed to answer the question.
Statement 2 alone is sufficient, but statement 1 alone is not sufficient to answer the question.
Both statements taken together are sufficient to answer the question, but neither statement alone is sufficient.
Statement 1 alone is sufficient, but statement 2 alone is not sufficient to answer the question.
Each statement alone is sufficient to answer the question.
Statement 1: We can use the area to find the length of square A's side.
Keep in mind that the ratio of square A to square B is 3:1.
Now that we know the length of the side, we can find the perimeter of square B.
Statement 2: We can use the diagonal to find the length of the side.
We can easily see the side measures 
Example Question #22 : Squares
What is the perimeter of the square?
- A side measures
.
- The area of the square is
.
Both statements taken together are sufficient to answer the question, but neither statement alone is sufficient.
Statement 2 alone is sufficient, but statement 1 alone is not sufficient to answer the question.
Each statement alone is sufficient to answer the question.
Statement 1 alone is sufficient, but statement 2 alone is not sufficient to answer the question.
Statements 1 and 2 are not sufficient, and additional data is needed to answer the question.
Each statement alone is sufficient to answer the question.
Recall the formula for perimeter of a square:
where 
Statement 1: We're given 
Statement 2: We're given the area 
With 
Each statement alone is sufficient to answer the question.
Example Question #5 : Dsq: Calculating The Perimeter Of A Square
Find the perimeter of the square.
- The diagonal measures
inches.
- The diagonal is found by
where
represents a square's side length.
Both statements taken together are sufficient to answer the question, but neither statement alone is sufficient.
Each statement alone is sufficient to answer the question.
Statements 1 and 2 are not sufficient, and additional data is needed to answer the question.
Statement 1 alone is sufficient, but statement 2 alone is not sufficient to answer the question.
Statement 2 alone is sufficient, but statement 1 alone is not sufficient to answer the question.
Statement 1 alone is sufficient, but statement 2 alone is not sufficient to answer the question.
Statement 1: We can find the length of the square's side using the information given.
so
We can now find the perimeter of the square: 
Statement 2: In order to find the length of the square's side using the information provided in Statement 1, we need to use this equation.
Statement 1 alone is sufficient, but statement 2 alone is not sufficient to answer the question.
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