In figure angle B is less than 90 degree and ad perpendicular bc.prove that ac square is equal to ab square plus bc square minus 2bc.bd
Answers
Answered by
16
AC² = AB² + BC² - 2BC * BD
Step-by-step explanation:
AD ⊥ BC
Applying Pythagorean theorem
AC² = AD² + CD²
=> AC² = AD² + (BC - BD)²
=> AC² = AD² + BC² + BD² - 2BC * BD
=> AC² = AD² + BD² + BC² - 2BC * BD
AD² + BD² = AB²
=> AC² = AB² + BC² - 2BC * BD
QED
Proved
Learn more:
use the given information to make a neat diagram of the figure ...
https://brainly.in/question/12529016
If avsquare + b square = 13, then write any one pair of values of a and
https://brainly.in/question/13870357
Answered by
2
Please mark me as brainlist and thank my all answers
Attachments:
Similar questions