Elliot is building a sandbox in the shape of a triangle. A model of the sandbox is shown. Which expression represents the perimeter of Elliot's sandbox?
x+11
3x−2
x+10
3x+10
1 answer
The perimeter of a triangle is the sum of the lengths of all its sides. Therefore, to calculate the perimeter of Elliot's sandbox, we need to add the lengths of the three sides together. Looking at the model of the sandbox, we can see that two sides have a length of x, and the third side has a length of 10. So, the perimeter of the sandbox can be expressed as x + x + 10 = 2x + 10. Therefore, the correct expression that represents the perimeter of Elliot's sandbox is 2x + 10. None of the given options matches this expression, so there seems to be a mistake in the answer choices.
2 answers