ATA Unit 6 Study Guide

The ratio of the measures of the angles in a triangle is 8:3:4. Find the measures of the largest angle.

The ratio of the measures of the sides of a triangle is 9:12:5. If the perimeter of the triangle is 130 feet, find the measures of the shortest side.

• 25 ft
• 45 ft

• 5 ft

• 12 ft

Find the scale factor of Figure A to Figure B. Write your answer as a fraction.

Find the scale factor of Figure B to Figure A.

If ΔKLJ ~ ΔVWU, find the value of x.

If ΔNML ~ ΔSRL, find the value of x.

If ΔDEF ~ ΔJKL, find KL.

• 7

• 45

• 18

• 25

If ΔPQR ~ ΔTSR, find SR.

• 60

• 29

• 57

• 8

If ΔNKF ~ ΔLZF, find NF.

If ΔCDE ~ ΔWXY with a scale factor of 4:3, find the perimeter of ΔWXY.

• 64

• 48

• 24

• 96