1. 21+18+16+18
2. 21+18x2+16
3. 73
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Answer:
perimeter = x + x + 2x + 2x
Step-by-step explanation:
- Perimeter of a rectangle = 2W + 2L
(where W is the width and L is the length)
Let x = one of the width side lengths:
⇒ 6x = 2x + 2L
⇒ 6x - 2x = 2L
⇒ 4x = 2L
⇒ 4x ÷ 2 = L
⇒ 2x = L
Therefore, perimeter = x + x + 2x + 2x
Find slope first
(3-3) 0
------- = -------- = 0
(2-5) -3
Now use point slope form
(y-y1) = m(x-x1)
(y-3) = 0(x-5)
y-3=0
y = 3 is your equation