The Sine Function
The theorem that states that the sum of the measures angles in a triangle is 180.
What is the Triangle Angle Sum Theorem?
A triangle whose largest angle is less than 90 degrees.
What is an acute triangle?
A triangle whose largest angle is exactly 90 degrees.
What is a right triangle?
A triangle whose largest angle is greater than 90 degrees.
What is an obtuse triangle?
A triangle with two equal sides.
What is an isosceles triangle?
A triangle with three equal sides.
What is an equilateral triangle?
A triangle with no equal sides.
What is an oblique triangle?
The theorem that states that the sum of the measures angles in a triangle is 180.
The ratio of the side opposite an angle to the hypotenuse of a right triangle.
What is the sine ratio?
The ratio of the side adjacent an angle to the hypotenuse of a right triangle.
What is the cosine ratio?
The ratio of the side opposite an angle to the side adjacent to that angle.
What is the tangent ratio?
This type of function relates the angle measures of a right triangle to the ratios of two side lengths of that triangle.
What are trigonometric functions?
The angle measures for which cosine and tangent are undefined.
What are the angle measures 90 degrees and 270 degrees?
The angle measures for which sine and cotangent are undefined.
What are the angle measures 0 degrees and 180 degrees?
The angle measures for which sine is equal to 1.
What are the angle measures 90 degrees and 270 degrees?
The angle measures for which cosine is equal to 1.
What are the angle measures 0 and 180 degrees?
The angles measures for which tangent is equal to 1.
This theorem allows you to solve a triangle given the following combination of sides and angles: SSA, ASA, and AAS.
What is the law of sines?
This theorem allows you to solve a triangle given the following combination of sides and angles: SAS and SSS.
What is the law of cosines?
Solving a triangle using this theorem, and given this combination of sides and angles, can lead to the ambiguous case.
What is the law of sines when given SSA?