The sides are in the ratio 1 : (1/2) : sqrt(3)/2, where sqrt denotes square root.
That these are the ratio of the sides of a right-angled triangle can be confirmed using Pythagoras' theorem:
1*1 = (1/2)*(1/2) + ( sqrt(3)/2 )*( sqrt(3) / 2 ) = ( 1/4 ) + ( 3/4 ) = 1
1/2 is the sine of 30 degrees.
sqrt(3)/2 is the sin of 60 degrees.
Remember this identity, it is very useful.
90
A "30 60 90 triangle" has that weird name because those numbers are its three angles. It can't have any angle of "4". If a triangle has an angle of '4', then it's not a '30 60 90 triangle'.
in a 30-60-90 right triangle, a right angle is always 90 degrees, the smallest angle has a measure of 30 degrees, and the remaining angle measures 60 degrees.
No. To be a "right" triangle, one angle has to be 90 degrees, but the other two angles can be anything as long as the measures of all three angles add up to 180 degrees. For example, you can have a 45 - 45 - 90 right triangle.
It is called a 30-60-90 triangle and it is a right triangle whose sides are always in the ratio:1:2:Square root (3).
90
The perimeter of a 30-60-90 triangle if the hypotenuse is 3 is: 7.098
If the ratio of the three sides are 1:√(3):2, it's a 30-60-90 triangle
A 30, 60, 90 triangle is a right triangle. It's one of the most common triangles to use to learn about the Pythagorean theorem.
its a triangle with one corner 30 degrees, one corner 60 degrees and one corner 90 degrees.
A "30 60 90 triangle" has that weird name because those numbers are its three angles. It can't have any angle of "4". If a triangle has an angle of '4', then it's not a '30 60 90 triangle'.
in a 30-60-90 right triangle, a right angle is always 90 degrees, the smallest angle has a measure of 30 degrees, and the remaining angle measures 60 degrees.
A 30-60-90 right triangle is one in which the three angles of the triangle 30, 60 and 90 degrees. The length of the sides of such a triangle have the ratio 1:2:square root of 3. The 1 is opposite the 30 degree angle, the 2 is opposite the 60 degree angle and the square root of 3 is opposite the 90 degree angle.
90
In a 30-60-90 triangle, the hypotenuse is double the length of the shorter leg.
Is a right angled triangle.
No. To be a "right" triangle, one angle has to be 90 degrees, but the other two angles can be anything as long as the measures of all three angles add up to 180 degrees. For example, you can have a 45 - 45 - 90 right triangle.