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What direction is the y axis pointing?
up/down
How does one get the formula for an equilateral triangle?
the formula for the area of equilateral triangle with side length a is (a^2)(sqrt(3)/4 ) So draw an equilateral triangle with sides a,a,a. Now divide it into two triangles by bisecting the top angle and extending that line down so it makes a 90 angle with the base. (any angle will do since it is symmetric, but I am trying to help you draw it) Now the new half triangle you have is a 30 60 90 triangle since the top angle is half the original which was 60 and the lower left angle is still 60. The 90 degree angle is the third angle and we are drawing it this way so we have a that the side between the 30 and 90 degree angles is the height of the triangle and we can use 1/bh which is the area formula. The new base has length a and the height is sqrt3(a) because it is a 30-60-90 triangle so 1/2 bxh= 1/2(1/2 )a (sqrt3)a=(1/4)a^2( sqrt3 )since 1/2 base = a/4 and height is sqrt3 x a
Starting with an equilateral triangle with the sides of 2 prove that sin60degrees equals root 3 over 2?
You need a sketch to prove this. and i don't think i can provide one. but il try..u have 3 sides, all of them with a length of 2. this means you have a triangle with all 3 corners equal to one another i.e. 60 degrees. /\ / \ / \ /___\ if this is the initial triangle, draw a line down the middle of the triangle like so: /\ / |\ / | \ /___ \ (difficult to illustrate) now you have one half of the original triangle. this new triangle has 3 corners equaling 60 degrees (at the bottom left), 30 degrees (at the top) and 90 degrees (at the bottom right). using Pythagoras figure out the side lengths. then you will figure out that sin(60) = sq(3)/2
Is this a girl or a boy symbol?
The female gender symbol is a down pointing cross with a circle above ♀
What is the altitude of a equilateral triangle if one side is 6 cm?
An equilateral triangle has all 3 sides the same length. To find the height of a triangle, draw a line from the tip top of the triangle to the middle of the base. You should see 2 triangles now inside your original triangle. We can use Pythagoras' theorem to figure out the length of this line, the height. This theorem will only work with right triangles, which (luckily) we have just created by drawing the height line inside the triangle. The P. theorem says that side squared + side squared = hypotenuse squared. Our hypotenuse is the left or right side of the original triangle, 6 cm. The line we drew down the center is one side, and HALF of the base is the other side for the P. theorem, since the height line of the triangle cuts the base exactly in half, and creates 2 right angles at the base. This line also creates 2 right triangles inside. This is why we can use the P. theorem to help us! But we'll only be using 1 of the inside triangles. (Even though, both are identical) side squared + side squared = hyp. squared (3 cm) squared + ??? squared = 6 squared 9 + ??? squared = 36 ??? squared = 36 - 9 ??? squared = 27 ??? = sqrt(27) We can simplify sqrt(27), or you can use a calculator to approximate it. sqrt(27) = sqrt(9*3) = 3 * sqrt(3)
Can an equilateral triangle be symmetrical?
Yes. An equilateral triangle can be symmetrical because cut it straight down the middle and it will be symmertrical.
What does a triangle pointing down mean?
A downward pointing triangle is often used to represent "female".
How do you make a quadrilateral out of four equilateral triangles?
Put the triangles in a line alternately pointing up and down.
What does a black triangle usually represent on a map?
See the legend. There's no standard "meaning" for any color on a map, though it's pretty common that blue means water.
Why does a triangle with line symmetry have to be isosceles?
The basis of symmetry is that everything on one side of an imaginary line is the same as the other. This means that if you split a triangle down the middle by an imaginary line, one side of the triangle on both halves will be the same. This defines an isosceles triangle. An equilateral triangle also has line symmetry.
What triangle is formed when you draw a line between a equilateral triangle?
A right angle triangle is formed if you draw a line through it straight down from the pointed tip to the base.
What type of signis shaped like a triangle with one angle pointing down?
yield
What is the name for the jashin symbol?
It's an upside down equilateral triangle inside a circle. It is called "scorpion flower"
What is anisosceles triangle?
If your question is "what is an [space] Isosceles triangle?" then... an Isosceles triangle is one where two of its sides are the same length while the third is either longer or shorter. Additionally, two of the angles are the same. if all three sides are the same length, it is an "equilateral triangle" (the root "equal" is in there). Additionally, all angles in the triangle are the same. if all three sides are different lengths, the triangle is called a "scalene triangle." additionally, all angles within the triangle are different. now, if your question is "what is an anisosceles triangle?" well... technically there is no such word, however, it isn't a nonsensical word. that is, if you break it down, it does have a meaning. the root "iso" means 'the same' (this is why an isosceles triangle is called what it is). when the prefix 'an' is added to a word, it means 'not.' so an anisosceles triangle, when broken down phonetically means "not a triangle with 2 equal sides." this could mean it is either equilateral or scalene, but not an isosceles. (but remember, this is not an actual term used, so...)
Meaning of a dove pointing down?
I'm not sure, but I think a dove pointing down means it's going to land or thinking about it.
How do you draw the star of David during the holocaust?
draw a triangle with the 1st point pointing straight up, and draw an upside down version of that on top of the first triangle.
How do you find the height of an equilateral triangle if you don't know its area and you only know that each side is equal to 41.3m?
Cut it exactly down the middle, along its height, and put one piece aside. The remaining side is a right triangle. The slanting side of the right triangle is a whole side of the original equilateral triangle, the bottom is half of an original side, and the vertical line is the height of the original triangle. Now you have a right triangle and you know the lengths of two of its sides, so you use what you know about right triangles to find the length of the third side, which is the height of the original equilateral triangle. It turns out to be 0.866 times the side of the equilateral triangle. (rounded) Technically, that's (1/2) x (side) x sqrt(3)
