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d is a point on the side bc of a triangle abc such that triangle adc =triangle bac show that ca square =cb. cd |
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Answer» Answer: easy Step-by-step explanation: Given:d is a POINT on bc angle adc=angle bac to prove : ca2=cb.cd proof: in triangle ABC and triangle ADC angle adc=angle bac ( Given ) angle C = angle c ( COMMON angle) triangle abc & triangle adc are SIMILAR triangles (A A similarity criteria) CA/CB=CD/CA (Similar triangle sides are proportional) CA*CA=CB*CD CA2=CB*CD hence proved |
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