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

If the scale factor between two circles is 2x/5y what is the ratio of their areas?

Statement reason 1. δabc is similar to δced. given 2. 3. definition of slope 4. slope of slope of definition of slope 5. slope of × slope of multiplying the slopes 6. slope of × slope of substitution property of equality 7. slope of × slope of simplifying the right side the table contains the proof of the relationship between the slopes of two perpendicular lines. what is the reason for statement 2? a. parallel line segments that meet a common perpendicular line are proportional in length. b. the lengths of vertical and horizontal sides in congruent triangles are in a common ratio. c. trigonometric identities determine the lengths of the legs in a right triangle. d. corresponding side lengths in similar triangles are proportional in length.

Astudent was asked to find the square of 7x+3. the student quickly wrote (7x+3)^3= 49x^2+9. identify the student's error and provide the correct answer.