A 30-60-90 triangle is a triangle whose angles of 30º, 60º, and 90º. The lengths of the sides of a 30-60-90 triangle are always in a fixed ratio. Suppose the short leg, opposite the 30º angle, has length x. Then the hypotenuse has length 2x, and the long leg, opposite the 60º degree angle, has length (sqrt 3)x. The sides of every 30-60-90 triangle will have this 1 : 2 : sqrt(3) ratio. (sqrt (3) means the square root of 3)
isosceles are 45-45-90
It is 30 because it's the highest common factor of 60 and 90
A 30-60-90 right triangle
Acute triangles have all of their angles less than 90 degrees. Right triangles have one of their angles equal to 90 degrees. Obtuse triangles have one of their angles greater than 90 degrees. Also, the 45-45-90 triangle and 30-60-90 triangle are useful when trying to get exact answers in trigonometry.
A right triangle because all triangles equal 180 degrees. 180-60=120 120-30=90
No because 30-60-90 triangles are right angle triangles
isosceles are 45-45-90
30-60-90 45-45-90
special triangles: 45-45-90 triangle and 30-60-90 triangle
It is 30 because it's the highest common factor of 60 and 90
That depends on what you want to 'do' to them. It helps to remember these two simple facts. They will solve most of the problems that involve a 30-60-90 triangle: -- The side opposite the 30 is (1/2 of the hypotenuse). -- The side opposite the 60 is (1/2 of the hypotenuse) times the sqrt(3) (or 31/2).
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.
A 30-60-90 right triangle
90
It is a triangle that has these 3 angles at its corners: 30, 60 and 90 degrees. This is one of the more common triangles as many designs are laid out at 30 degrees or 60 degrees.
The answer to the ratio 60 to 90 can be simplified by dividing both numbers by their greatest common factor, which is 30. This simplifies the ratio to 2 to 3. So, the answer to the ratio 60 to 90 is 2 to 3.
No, they have the same angles but may vary in size.