Which diagram shows a percent equivalent to Three-fifths? 1) An area model with 60 shaded sections and 40 unshaded sections.
2) An area model with 65 shaded sections and 35 unshaded sections.
3) An area model with 75 shaded sections and 25 unshaded sections.
4) An area model with 80 shaded sections and 20 unshaded sections.

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.