In triangle abc angle abc equal 90 degree BD perpendicular Ac is BD 8cm AD 4 cm CM then the length of CD is correct option is​

Triangle ABC, ∠ABC = 90°, also BD is perpendicular to AC.

∠ACB = x° and ∠CBD = 90 - x

=> ∠ABD = x and ∠BAD = 90 - x

=> ΔABC , ΔADB and ΔBDC are similar.

it's equivalent, so we can say that its equal.

let's call the denominator x and the numerador is 18 less then denominator, x - 18.

multiply

2.x = 5.(x - 18)

2x = 5x - 90

90 = 5x - 2x

90 = 3x

x = 90/3

x = 30

so:

b

step-by-step explanation:

u take $75 minus $60.the anwer/original($75)multiply by 100