What is the difference between kay's longest bike ride and her shortest bike ride?

Which triangles area would be calculated using the trigonometric area formula

Maria donates a fixed amount, a, to a charity each month. if she donates $300 in 12 months, what is the equation for a? a. a + 300 = 12 b. a × 300 = 12 c. a × 12 = 300 d. a + 12 = 300 e. a + 32 = 100

What is the length of the unknown leg in the right triangle ?