The answer should be 30. I hope this helps :)
Answer:
30.7 ft
Step-by-step explanation:
<em>An equilateral triangle with area 43.5 has a height of 8.68 not 8.5</em>
<em>I will do the problem as written even though it is not a possible equilateral triangle</em>
<em>---------------------------------------------</em>
a = (1/2)bh
43.5 = (1/2)b(8.5)
43.5 = 4.25b
b = 43.5/4.25
b = 10.2352941176
-----------------------
p = 3b
p = 3 * 10.2352941176
p = 30.7058823528
~ 30.7 ft
Multiply every coordinate by the scale factor 3
(-1,2,0) ----> (-3,6,0) is the answer
To solve these questions, use this formula:
X3= F(X1-X2)
Y3= F(Y1-Y2)
Where X3 is the X value in the coordinate your solving for, F is the fraction, X1 is the first X and X2 is the second X
Plug in your numbers to fit this:
X3= 1/4 x (0--2)
Y3= 1/4 x (4- -3)
By solving you get:
(-.5, 1.75)
7.5? well 7 1/2? there is the answer
