If a = band b = C, which statement must be true? O A. -= -6
O B. c = a
ос. а = с
O D.-a=c

"which statement is necessarily true if bd is an altitude to the hypotenuse of right ? abc? a.) ? adb? ? bdc b.) ? adb~? bdc c.) abbc=acbd d.) ? bac? ? bdc"