Triangles
All sides of this triangle are equal.
What is an equilateral triangle?
A line that passes through the center of a circle.
What is the diameter?
½bh
What is the area of a triangle?
Opposite over hypotenuse.
What is Sine?
The formula for the area of a circle.
A=πr²
Two sides of this triangle are equal.
What is an isosceles triangle?
An angle greater than 90 degrees.
What is an obtuse angle?
½h(b1+b2)
What is the area of a trapezoid?
Adjacent over hypotenuse.
What is Cosine?
The vertex is at the center of the circle.
What is a central angle?
None of the sides are equal.
What is a scalene triangle?
Two line segments that cross to form 90-degree angles.
What are perpendicular lines?
⅓hπr²
Opposite over adjacent.
What is Tangent?
A piece of the circumference.
The formula used to find a side on a right triangle.
What is pythagorean theorem?
A line segment whose endpoints both lie on the edges of a circle.
What is a chord?
2πr
What is the circumference of a circle?
The type of triangles SOH-CAH-TOA can be used on.
What are right triangles?
The vertex is on the circle.
What is an inscribed angle?
The five ways to prove triangles are congruent.
What is SSS, SAS, ASA, AAS, and HL.
Lines that do not intersect.
What are parallel lines?
⅓Bh
What is the volume of a pyramid?
The angle formed by the line of sight and the horizontal plane for an object below the horizontal.
What is the angle of depression?
(x-h)²+(y-k)²=r²
What is the formula of a circle?