Print test
5 Written questions
5 Multiple choice questions
 Ratios formed by the sides of a right triangle. Useful in finding the missing sides of a right triangle given an angle and a side. Trigonometric ratios include sine (sin), cosine (cos), and tangent (tan). Other ratios (not covered in this chapter) are: cosecant, secant, and cotangent
 The angle formed when looking up from the horizontal
 The angle formed when looking down from the horizontal
 Three positive integers that satisfy a^2 + b^2 = c^2, that is, they could be the three side lengths of a right triangle. Primitive triples include: 3, 4, 5; 5, 12, 13, and 8, 15, 17. More triples can be formed by multiplying each member of a primitive triple by the same multiplier; for example, since 3, 4, 5 is a triple, so is 6, 8, 10.
 trigonometric ratio: abbreviation sin; the sine of an acute angle in a right triangle equals the side opposite the angle divided by the hypotenuse (sin A = opp/hyp)
5 True/False questions

Pythagorean Theorem → In a right triangle with legs a and b and hypotenuse c, a^2 + b^2 = c^2

454590 right triangle → Special right triangle: isosceles right triangle where the legs are congruent and the hypotenuse = leg * sqrt(2)

306090 right triangle → Special right triangle: isosceles right triangle where the legs are congruent and the hypotenuse = leg * sqrt(2)

Obtuse triangle → In a triangle with shorter sides a and b and longer side c, if a^2 + b^2 < c^2, then the triangle is obtuse

tangent → trigonometric ratio: abbreviation sin; the sine of an acute angle in a right triangle equals the side opposite the angle divided by the hypotenuse (sin A = opp/hyp)