0
Starting with an equilateral triangle with the sides of 2 prove that sin60degrees equals root 3 over 2?
Wiki User
∙ 15y ago
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
Wiki User
∙ 15y ago
Add your answer:
Earn +20 pts
Find the area of an equilateral triangle with side length 14?
u do 3*14(the side length.) so the perimeter equals 42. then u take half of 14 (which is 7) so then ur apothem equals 7. so u do A= 1/2* 7*42 = 147
Side ac equals 12 side bc equals 16 and side ab equals 20 is triangle abc a right triangle?
yes
Perimeter of a triangle where a equals 21 b equals 28 c equals?
49 + c units
If triangle AC equals 6 and BD equals 4 find AB?
If AC equals 6 and BD equals 4, then AB equals 5.
How do you determine if a triangle is a right triangle?
For a right angled triangle, sum of squares of two sides of a triangle equals square of the third side. For example - In triangle ABC, AB2 + BC2 = AC2
What is a triangle with all three sides equals in length?
It's called an 'equilateral triangle'.
In an equilateral triangle BDequals 8.9 cm and BC equals 8 cm what is the area of the triangle?
If the sides are different lengths it ain't equilateral...
If a equals 6 cm what is the area of the equilateral triangle?
18=c
What does an equilateral triangle equal?
an equilateral triangle has 3 angles and 3 side lengths that are the same To gays an equilateral triangles equals homosexual. They often color them pink (fag) or black (dyke).
How you can justify the construction of an equilateral triangle?
An equilateral triangle has three sides of equal length. The sum of the three internal angles (60o each) equals 180o
What is a polygon called if each interior angle equals 60 degrees?
an equilateral triangle, or equiangular triangle
What is the area of the equilateral triangle having a perimeter of 18?
Area equals 15.59
Triangle abc is an equilateral triangle bc equals 10 what is the length of ad give your answer to the nearest whole number?
5
What triangle has 3 equal sides and 3 equal angels?
By definition, an equilateral triangle, which is a triangle whose sides are equals and each of its angles has 60º.
How do you find the perimeter of a equilateral triangle when a side equals 12yrds?
An equilateral triangle has three sides of exactly the same length. Therefore, if one side of the triangle is equal to 12 yards, then the perimeter of the triangle is equal to 12 x 3 = 36 yards.
If a equals 6 find the area of the equilateral triangle round the answer to one decimal place?
187.10
What is a measure of each angle of an equilateral triangle?
all triangles equal 180 degrees so 180/3 equals 60 so, the measure of each angle of an equilateral triangle is 60 degrees.
