Question

write an expression for a triangle where side 1 is an unknown length . side 2 is twice side 1 and side 3 is 4 centimeters longer than side 1 .

Answer 1

Answer: x+2x+(4+x)

Explanation:

since side one is unknown, we can substitute it with variable x, and side two is twice as much as side one so we do 2x, and side three is four cm longer than side one so we do 4+x at the end

Answer 2

Let's call the length of side 1 "x". Then, the length of side 2 is 2x, and the length of side 3 is x + 4. So, the expression for the three sides of the triangle can be represented as:

x + 2x + (x + 4) = 3x + 4

This expression represents the sum of the lengths of all three sides of the triangle.

Explanation: