Presentation on theme: "6.4.1 Prove triangles similar by AA. Remember that Angles define a ratio, there for the sides are dependent on the angles And, remember that given 2 angles."— Presentation transcript:
6.4.1 Prove triangles similar by AA
Remember that Angles define a ratio, there for the sides are dependent on the angles And, remember that given 2 angles of two triangles are congruent then the third angles are also congruent (third angles theorem) Therefore…..
Given two triangles with two pairs of congruent angles then the triangles are similar For ABC, DEF, given A D and B Fthen ABC ~ DEF B A E CF D
If possible solve for x, justify by showing ABC ~ ADE B A E C D x x 16x 2
We will see a better way to solve this problem in later chapters. A 6 foot persons shadow casts 2.5 feet, a telephone pole casts a shadow 50 feet long in the same sun, what is the height of the telephone pole Errors in measurement?