angle DBE=ANGLE ABC (COMMON)

ANGLE DEB =ANGLE ACB(EACH 90 )

THEREFORE TRI DEB AND ACB ARE SIMILAR (BY AA RULE)

BE/BC=AC/DE

THEREFORE, BE/DE=AC/BC

angle DBE=ANGLE ABC (COMMON)

ANGLE DEB =ANGLE ACB(EACH 90 )

THEREFORE TRI DEB AND ACB ARE SIMILAR (BY AA RULE)

BE/BC=AC/DE

THEREFORE, BE/DE=AC/BC

What are you looking for?