triangle abc with segment bd where point d is between points c and a, bc equals x, bd equals y, cd equals w, da equals z, and ba equals v
what expression represents the value of x?
x equals the square root of quantity w times the sum of w plus z end quantity
x equals the square root of quantity z times the sum of w plus z end quantity
x equals the square root of quantity w times y end quantity
x equals the square root of quantity w times z end quantity