SOLUTION: Write an equation to find the value or x so that each pair of polygons has the same perimeter. Then solve. Triangle: x+6, x+3, x+9 Rectangle: x+1, x+4

SOLUTION: Write an equation to find the value or x so that each pair of polygons has the same perimeter. Then solve. Triangle: x+6, x+3, x+9 Rectangle: x+1, x+4

Algebra.Com

Question 913024: Write an equation to find the value or x so that each pair of polygons has the same perimeter. Then solve.
Triangle: x+6, x+3, x+9
Rectangle: x+1, x+4
Answer by richard1234(7193) (Show Source): You can put this solution on YOUR website!
Perimeter of triangle = (x+6) + (x+3) + (x+9) = 3x + 18
Perimeter of rectangle = 2((x+1) + (x+4)) = 2(2x+5) = 4x + 10

These two are equal, so 3x + 18 = 4x + 10 --> x = 8.
RELATED QUESTIONS
I need help! This is due tomorrow! (It's 7th grade math by the way.) The question... (answered by Earlsdon)

Please could you help me with a question that I have been set. The question is the... (answered by vleith)

Please help i don't understand this at all! Q: Elin wants to fence two different garden... (answered by ewatrrr)

Hi, Ok so I have this problem, and it says their are two polygons that are similar. Find (answered by josgarithmetic,KMST)

the perimeter of the triangle is below is 27 yards. Write an equation and then solve to... (answered by ikleyn)

So in my homework it says "Find the value of x so that the figures have to same... (answered by josgarithmetic,MathTherapy)

- Two angles with measures os (2x � 7) and (3x � 3) are complementary. Find x x = 45 x... (answered by Alan3354)

The angles are complementary , write and solve an equation to find each value of... (answered by Alan3354)

A polygon is regular if each of its sides has the same length. Find the perimeter of... (answered by KMST)