This greek letter is an acute angle of a right triangle.
What is theta?
100
In a coordinate plane, this is the side that is fixed upon the positive X-axis.
What is the initial side?
100
an angle in standard position whose terminal side lies on an axis is called this.
What is a quadrantal angle?
100
When two angles and the length of any side are know, or when the length of two sides and an angle opposite one of the two sides are know, this can bemused to solve a triangle.
What is the law of sines?
100
When two sides and the included angle are known, or when all three sides are known, you can use this to solve the triangle.
What is the law of cosines?
200
In a triangle, the opposite side of an angle over the hypotenuse is sine theta of the triangle. That means that this is the cosine theta of the triangle.
What is the adjacent over the hypotenuse?
200
An angle in a coordinate plane is in standard position if this.
What is if its axis is on the origin and its initial side is fixed on the positive X-axis?
200
When theta is equal to a, and -90 degrees is less than or equal to theta which is less than or equal to 90 degrees, it is called this.
What is inverse sine?
200
No triangles, 1 triangle, or two triangles can be found using this.
What is SSA?
200
If triangle ABC has side lengths of a, b, and c, cos A is this.
What is a^2=b^2+c^2-2bc?
300
If theta is equal to 45 degrees, this is tangent theta.
What is 1?
300
In a coordinate plane, this is the side of an angle in standard position that is rotated around the vertex.
What is the terminal side?
300
If an angle in standard position is equal to 150 degrees, this would be its reference angle.
What is 180 degrees?
300
If you know, in triangle ABC, that A=40 degrees, C=75 degrees, and c=20, this case is applicable.
What is what is AAS?
300
If you have the measures of two side lengths and one included angle, you use this law.
What is the law of cosines?
400
Finding all unknown side lengths and angle measures of a triangle is called this.
What is solving the triangle?
400
An angle in standard position whose terminal side intercepts an arc of length r is the measure of one of these.
What is a radian?
400
Two terminal sides coinciding are called this.
What are coterminal sides?
400
These solve an area, 1/2bc(sin)A, 1/2ac(sin)B, and 1/2ab(sin)C.
What is Area of a Triangle.
400
Solve triangle ABC using the SSS case with a=12, b=27, and c=20.
What is A=24.2 degrees, B=112.7 degrees, and C=43.1 degrees.
500
The angle that your line of sight makes with a line parallel to the ground, when you look up at a point is called this.
What is the angle of elevation?
500
2 pi radians is equal to this degree measure.
What is 360 degrees?
500
An angle formed by two radii is called this.
What is a central angle?
500
Solve triangle ABC with A=40 degrees, a=13, and b=16.
What is Triangle 1: B=52.3 degrees, C=87.7 degrees, and c=20.2 degrees and Triangle 2: B=127.7 degrees, C=12.3 degrees, and c=4.3 degrees.
500
The area of a triangle with sides length a, b, and c is:
Area=[s(s-a)(s-b)(s-c)]^1/2 where s=1/2(a+b+c), is what formula.