Similar Triangles (A) Worksheet | PDF Printable Geometry Worksheet - Free Printable

Educational worksheet: Similar Triangles (A) Worksheet | PDF Printable Geometry Worksheet. Download and print for classroom or home learning activities.

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1) A and C; AA similarity (both have 100° and 30° angles, so the third angle is 50° in both).
2) A and C; AA similarity (both have 55° and 90° angles, so the third angle is 35° in both).
3) A and C; SSS similarity (sides of A: 6, 8, 10; sides of C: 4, 5, 6; ratios are 6/4 = 1.5, 8/5 = 1.6, 10/6 ≈ 1.67 — not proportional; correction: A and B; SSS similarity (6/9 = 2/3, 8/12 = 2/3, 10/15 = 2/3)).
4) A and C; SAS similarity (A has sides 6 and 11 with included 25° angle; C has sides 10.2 and 18.7 with included 25° angle; 6/10.2 = 10/17, 11/18.7 = 10/17, so sides proportional and included angle equal).

Parent Tip: Review the logic above to help your child master the concept of similar figures worksheet geometry.

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