# Find the Length of a Missing Side of a Right Triangle and Perimeter and Area

This video explains how to apply the Pythagorean theorem to determine the length of a missing side of a right triangle. Then the perimeter and area of the triangle are found.

# Simplify Trigonometric Expressions: (Pythagorean Identities)

This video explains how to simplify trigonometric expressions using a Pythagorean identity.

# Simplify Trigonometric Expressions (Sum of Fractions: sec and tan)

This video explains how to simplify trigonometric expressions using adding fractions and using identities.

# Simplify Trigonometric Expressions (Sum of Fractions: sine and cosine)

This video explains how to simplify trigonometric expressions using adding fractions and using identities.

# Given sin(A)=2/5 and Quadrant of A, Find 5 Trig Function Values

This video explains how to find the 5 remaining trigonometric function values given the sine function value and the quadrant of the angle.

# Given tan(A)=-5/7 and sin(A)>0, Find sin(A) and cos(A)

This video explains how to find sine and cosine function values given the tangent function value and that sine is positive.

# Pythagorean Thm and Quadratic Formula App: Rectangle Dimensions Given Diagonal and Area

This video explains how the determine the dimensions of a rectangle given the relationship between the length and width, given the length of the diagonal and area.