The Right Triangle Nicolaas Lems

Contents Sine Cosine Tangent What is a Right Triangle? Title PageReferencesState Core

Sine Sine(a)=Opposite/Hypotenuse Opposite Adjacent Hypotenuse a Problem using Sine contents Click Here

Cosine Opposite Adjacent Hypotenuse a Cosine(a)=Adjacent/Hypotenuse Problem using Cosine contents Click Here

Tangent Opposite Adjacent Hypotenuse a Tangent(a)=Opposite/Adjacent Problem using Tangent contents Click Here

What is a Right Triangle? A right triangle is a triangle with one of it’s three angles measuring to be 90º More on the right triangle contents Click Here

10 32° X need help Find the Value of X using the Sine answer contents  previous

12.5 X 70º need help Find the value of X using the Cosine answer contents  previous

20 X 50° need help Find the value of X using the Tangent answer contents  previous

Answer 10 32° X Sin(32º)=X/10 X=sin (32º)*10 X=5.3 contents Click to see answer

Answer 12.5 X 70º Cos(70º)=12.5/X X= 12.5/Cos(70º) X=36.5 contents Click to see answer

Answer 20 X 50° Tan(50º)=20/X X=23.8 X=20/ Tan(50º) contents Click to see answer

References Math World Webmath.com contents

State Core Standard 2 Students will represent and analyze mathematical situations and properties using patterns, relations, functions, and algebraic symbols. Objective 2.1 Use patterns, relations, and functions to represent mathematical situations. Identify trigonometric relationships (sine, cosine, and tangent) using right triangles, expressing the relationships as fractions or decimals. contents