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PtichkaEL [24]
3 years ago
15

Vcvvvv

Mathematics
1 answer:
VARVARA [1.3K]3 years ago
5 0

I'm not sure Google it tho might help

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The altitude of an equilateral triangle is 9 inches. Find the perimeter of the triangle in inches.
Fiesta28 [93]
If we  draw a perpendicular line from one of the vertices of the triangle we get  2 right angled triangles  each with  altitude 9 ins  and vertex angle = 30 degrees.   So:-

cos 30 = 9 /h     where h = one of the sides of the equilateral triangle

h =  9 / cos 30  =  10.392 inches

Therefore the perimeter of the triangle = 3 * 10.392 =  31.1769 ins

Answer is 31.18 inches to the nearest hundredth.
5 0
3 years ago
I will give brainleist
Kitty [74]

Answer:

<em><u>= </u></em><em><u>28.27m   </u></em>

Step-by-step explanation:

<h3>                      AREA OF CIRCLE <u>= 2 π r</u></h3>

                                                    = 2 x 3.14 x 3m  

                                                      <em><u>= 28.27m   </u></em>

4 0
3 years ago
Please help, I will give Brainliest to whoever answers! &lt;3
Rufina [12.5K]

Answer:

the answer is c i did the test

Step-by-step explanation:

pls i did the test trust me.

7 0
3 years ago
Read 2 more answers
Help please!!!!!! and explanation if possible
loris [4]
The correct answer is 3



the triangle sides are equal. so :
4x - 1 = 2x + 5 \\ 4x - 2x = 1 + 5 \\ 2x = 6 \\ x =  \frac{6}{2}  = 3



good luck
6 0
3 years ago
Suppose your family buys a "movie card" from a DVD
topjm [15]
Y = 3x + 25, because I’m assuming that that you start by renting 25 movies.
8 0
2 years ago
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