A TRIANGLE ABC IS RIGHT ANGLED AT A.  L IS A POINT ON BC SUCH THAT AL IS PERPENDICULAR TO BC .PROVE THAT ANGLE BAC=ANGLE ACB

Asked by vrishti TOKAS | 28th Jul, 2015, 08:30: PM

Expert Answer:

W e space h a v e space t o space p r o v e space angle B A L equals angle A C B  L e t space angle B A L equals x comma space angle A C L equals y I n space increment B A L comma angle L A C equals 90 degree minus x  I n space increment A C L comma angle A C L plus angle A L C plus angle L A C equals 180 degree angle A C L plus 90 degree plus 90 degree minus x equals 180 degree angle A C L plus 180 degree minus x equals 180 degree angle A C L minus x equals 0 angle A C L equals x therefore angle A C L equals angle A C B equals x therefore angle B A L equals angle A C B H e n c e space P r o v e d
 

Answered by Prasenjit Paul | 29th Jul, 2015, 11:27: AM