# Law of sines: Quiz

Question 1: In trigonometry, the law of sines (also known as the sines law, sine formula, or sine rule) is an equation relating the lengths of the sides of an arbitrary triangle to the ________ of its angle.
Pythagorean theoremInverse trigonometric functionsTrigonometric functionsGenerating trigonometric tables

Question 2: The law of sines can be used to compute the remaining sides of a triangle when two angles and a side are known—a technique known as ________.
TriangulationAbu Rayhan BiruniGeometryThales

Question 3: Half side formulae – for solving ________
Al-JayyaniSpherical triangleSphereSpherical geometry

Question 4: The law of sines is one of two trigonometric equations commonly applied to find lengths and angles in a general triangle, the other being the ________.
Law of cosinesMathematics in medieval IslamHistory of trigonometryPythagorean theorem

Question 5: Law of sines
________
Law of tangents
Pythagorean theorem
History of trigonometryMathematics in medieval IslamTrigonometric functionsLaw of cosines

Question 6: A corollary of the law of sines as stated above is that in a ________ with vertices O, A, B, C, we have
TetrahedronDodecahedronIcosahedronOctahedron

Question 7:
CORDICTrigonometric functionsGenerating trigonometric tablesInverse trigonometric functions

Question 8: the common value of the three fractions is actually the diameter of the triangle's ________.
Circumscribed circleAltitude (triangle)Cross productNine-point circle

Question 9:  It was later applied practically in the 11th century by ________ in order to accurately determine the Earth radius in his Masudic Canon.
Abu Rayhan BiruniAlhazenAl-KindiNasir al-Din al-Tusi