Since the triangle is an equilateral triangle we know all of it's sides must be the same length, with that in mind the angles that make up the triangle must be equal as well. Knowing that a triangle's three interior angles make up 180 degrees we know that the size of each angle must be one third of this (as each angle must be equal).
180/3 = 60
then we may split the triangle along it's altitude into two special right triangles
more specifically two 30-60-90 triangles.
this means that the side with 30 degrees will be some value "x" where the side for 60 degrees will be related as it is "x*sqrt(3)" and the hypotenuse (which would be the side of the triangle) would be proportionally "2x"
this would mean that the altitude is the side associated with the 60 degree angle as such we can solve for "x" using this.
12= x*sqrt(3)
12/sqrt(3)=x
4sqrt(3)=x (simplifying the radical we get "x" equals 4 square root 3)
now we may solve for the side length of the triangle which is "2x"
2*4sqrt(3) -> 8sqrt (3)
eight square root of three is the answer.
Answer:
i think that 1, 3 and 4 are correct !!
Step-by-step explanation:
youre welcome, have a nice day!
NOTE: next time please provide the list of choices so it can be easier to help you
Answer:
pls mark me brainlist .......my question was the same but no one ans I don't know
The midpoint of a line divides the line into equal segments.
The option that proves PQ = LO is (a)
The given parameters are:
P is the midpoint of LM.
So, we have:
Q is the midpoint of NO.
So, we have:
Distance PQ is calculated as follows:
This gives:
Distance LO is calculated as follows:
So, we have:
Thus:
Hence, the correct option is (a)
Read more about distance and midpoints at:
brainly.com/question/11231122
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