A rectangle has a length of 13 and a width of 6 . What is the perimeter of the rectangle?

The correct answer is C. Choice C is correct. The perimeter of a quadrilateral is the sum of the lengths of its four sides. It's given that the rectangle has a length of 13 and a width of 6 . It follows that the rectangle has two sides with length 13 and two sides with length 6 . Therefore, the perimeter of the rectangle is 13 + 13 + 6 + 6 , or 38 .

SAT Question c88183f7: Answer, Explanation & Desmos Solution

Choice A

Choice A is incorrect. This is the sum of the lengths of the two sides with length $6$ , not the sum of the lengths of all four sides of the rectangle.

Choice B

Choice B is incorrect. This is the sum of the lengths of the two sides with length $13$ , not the sum of the lengths of all four sides of the rectangle.

Choice D

Choice D is incorrect. This is the perimeter of a rectangle that has four sides with length $13$ , not two sides with length $13$ and two sides with length $6$ .

Explanation

Enter in Desmos:

Why the other choices are wrong

SAT Question c88183f7: Area and Volume answer and explanation with Desmos solution

Explanation

Enter in Desmos:

Why the other choices are wrong