Englis malytic Geometry-Jelksi Anthony
Solving for Side Lengths of Right Triangles
Assignment
Active
Writing Equations Using Trigonometric Ratios
A
Which equations could be used to solve for the
unknown lengths of ABC? Check all that apply.
sin(45%) = BC
45
9
sin(459) = 9
9 tan(45%) = AC
(AC)sin(459) = BC
COS(450) =
С
B

Step-by-step explanation:

Given

See attachment for triangle

Required

Select the equations that solves the unknown lengths

From the attachment, the unknown lengths are:

AC and CB

Where

To calculate AC, we make use of cosine rule

Make AC the subject

To solve for BC, we make use of sine rule

Make BC the subject

x=-2

infinite number of lines, so there is an infinite number of equations.

step-by-step explanation:

there are an infinite number of line that passes through the point (-2,5)

x=-2   is one line that passes through the point

y = 5 is another line that passes through the point

(these two lines are perpendicular to each other).

since the number of   numbers are infinite and the slope is the ratio of two numbers,(change in y over change in x) we can have an infinite number of slopes.     our only condition is that it passes through the point (-2,5)

a

step-by-step explanation: