Answer:
45
Step-by-step explanation:
2x+2x+2x+3x+3x=540(sum of angels in a five sided polygon)
12x=540
x=45
Find the points x and y and calculate p=x+x+y+y
The formula of the distance between 2 points states that the distance AB between points A(a, b) and B(c, d) is found as follows:
.
Let the points of the polygon be A<span>(-6,-1), B(-3,-4), C(6,5) and D(3,8). Then, the perimeter of the polygon ABCD is
AB+BC+CD+DA.
We can find each of </span>AB, BC, CD, DA by the Distance Formula as follows:
.
.
.
.
Thus, the perimeter of the polygon is
(units).
Answer:
units
Answer:
105
Step-by-step explanation:
2.5y + 3x=7 (1st)
5x - 2.5y = 5 re-write -2.5y + 5x = 5 (2nd)
2.5y + 3x=7 (1st)
-2.5y + 5x = 5 (2nd)
---------------------------add
8x = 12
x = 12/8 = 1.5
2.5y + 3x=7
2.5y + 3(1.5)=7
2.5y = 7 - 4.5
2.5y = 2.5
y = 1
answer
solution (1.5 , 1)