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drek231 [11]
3 years ago
6

What is an equilateral triangle

Mathematics
2 answers:
almond37 [142]3 years ago
7 0

Answer:

When all sides are equal

Step-by-step explanation:

Blababa [14]3 years ago
6 0

An equilateral triangle is a triangle where all three sides are equal lengths, it's usually also equiangular, meaning all three internal angles are equal (at 60 degrees.)

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1. A boat is 18 ft away from a point perpendicular to the shoreline. A person stands at a point down the shoreline so that a 68°
slega [8]

Answer:

19.4 feet

Step-by-step explanation:

When calculating distances using perpendicular angles, we use trig functions such as Sin, Cos, and Tan.

  • Sine is defined in a perpendicular triangle as the ratio of the opposite side to the angle over the hypotenuse.
  • Cosine is defined in a perpendicular triangle as the ratio of the adjacent side to the angle over the hypotenuse.
  • Tangent is defined in a perpendicular triangle as the ratio of the opposite side over the adjacent side.

Because our angle and know side value are across from each other and we need to know the hypotenuse, we chose to use Sine.

We set up the equation sin (68) = \frac{18}{h}.

We isolate h by multiplying h across the equal sign and dividing sin (68) across as well. sin (68) = \frac{18}{h}\\hsin (68) = \frac{18}{h}*h\\hsin (68) = 18\\\frac{hsin (68)}{sin (68)} =\frac{18}{sin (68)} \\

And finally we have h=\frac{18}{sin (68)}. We input to calculator.

h=\frac{18}{0.92718} \\h=19.4 feet

See the attached picture below showing the shore with the boat out at sea and the position of the person.


8 0
3 years ago
two angles are supplementary the first angle measures 40 degree what's the measurement of the second angle
Leni [432]
Supplementary is when 2 angles add up to 180°.
180°-40°=140°
4 0
3 years ago
Read 2 more answers
A tap is filling a 10-liters tank at the speed of 5 liters per minute.
SVETLANKA909090 [29]

Answer:

<em />

  • <em>It takes</em><u>     2.5 minutes   </u><em>to fill the tank.</em>

Explanation:

The net speed or net rate for filling the 10-liters tank is equal to the speed the tap is filling less the speed the water is leaking through the hole located at the bottom of the tank:

  • Net rate = rate of filling - rate of leaking
  • Net rate = 5 liters/minute - 1 liter/minute
  • Net rate = 4 liters/minute

Thus, consiedering the tank is empty at the beginning, the time is:

  • Time = Volume of the tank / net rate of filling
  • Time = 10 liters / (4liters/minute)
  • Time = 2.5 minutes ← answer
4 0
3 years ago
NEED HELP NOW 25 POINTS 5 PHOTOS WILL MARK BRAINLIEST ANSWER!!! HURRY!!!!!!
Andru [333]
The function to the graph is 6
4 0
3 years ago
Find the circumference of the circle. Round your answer to two decimal places if necessary <br> 4cm
ratelena [41]

Answer:

I think its 12.56

Step-by-step explanation:

Multiply 4 and 3.14(thats pi)

7 0
2 years ago
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