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Sophie [7]
3 years ago
12

What are the coordinates of the centroid of a triangle with vertices

Mathematics
2 answers:
scoundrel [369]3 years ago
6 0
\bf ~~~~~~~~\textit{Centroid of a Triangle}\\\\
\begin{array}{llll}
P(x_1,y_1)\quad Q(x_2,y_2)\quad R(x_3,y_3)\\ \quad \\
\left(\cfrac{x_1+x_2+x_3}{3}\quad ,\cfrac{y_1+y_2+y_3}{3}\quad \right)
\end{array} ~~ \begin{array}{llll}
P(-4,-1)\quad Q(2,2)\quad R(2,-3)\\ \quad \\
\left(\cfrac{-4+2+2}{3}\quad ,\cfrac{-1+2-3}{3}\quad \right)
\end{array}
IceJOKER [234]3 years ago
4 0
First let's find the lengths if the sides:
PQ = 3 \sqrt{5}  \\ pr = 2 \sqrt{13}  \\ qr = 5
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Can I have some help finding the area to this? Can someone also explain how to figure this out?? PLEASE
nignag [31]
Let's separate the hexagon into 5 shapes; 2 triangles on each side, and a rectangle in the middle. Now let's find the area of each of the smaller shapes.

Top left triangle:
The equation to find the area of a triangle is
(base = b, height = h, a = area)
a = b · h · \frac{1}{2}
Now let's add in our values and solve.
a = 2 · 4 · \frac{1}{2}
a = 8 · \frac{1}{2}
a = 4

Now since there are 4 of these triangles, and they're all the same size,
4 · 4 = 16
All of the triangles put together = 16cm²

The middle rectangle:
The equation to find the area of a rectangle is simple:
(w = width, l = length, a = area)
a = w · l
Now let's put in our values and solve.
a = 4 · 8
a = 32

The rectangle is 32cm²

Now let's add the areas together. 
32 + 16 = 48

The answer is <span>48cm²

Hope this helped! If you have anymore questions or don't understand, please comment or DM me. :)
</span>
4 0
3 years ago
Everyone at Jaylen's school wore either brown or blue for school spirit day. 90 students wore brown and 10 students wore blue. W
NISA [10]

Answer:

90%

Step-by-step explanation:

90 + 10 is 100 total

90/100 is just 90%

6 0
2 years ago
Read 2 more answers
Describe a sequence of transformations that transform the graph of the parent function f into the graph of the function g.
olganol [36]

Answer:

The sequence is: Refection across y-axis, Horizontal Shrink, Horizontal Translation and Reflection across x-axis.

Step-by-step explanation:

Since, we are given f(x) = square root x.

The sequence of transformations which transform f(x) into g(x) is given by:

1. Reflection across y-axis i.e. f( x ) to f( -x )

2. Horizontal Shrinking i.e. f( -x ) to f( -x/2 )

3. Horizontal Translation i.e. f( -x/2 ) to f( -x/2 + 3 )

4. Reflection across x-axis i.e. f( -x/2 + 3 ) to -f( -x/2 + 3).

The step by step graphical representation can also be viewed below.

5 0
3 years ago
-3 + (-5) tjjv5grjvkjgkv
mash [69]

Answer

the answer is 8 so your welcome

8 0
2 years ago
Write 2.8 as a mixed number in a simplest form
Elena-2011 [213]
It would be 2 4/5............i hope this helps you
3 0
3 years ago
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