Given BC = 9 and AC = 12, find the length of the following segments: AB, AD and DB

b

step-by-step explanation:

true

step-by-step explanation:

in problems involving proportions, we can use cross products to test whether two ratios are equal and form a proportion. to find the cross products of a proportion, we multiply the outer terms, called the extremes, and the middle terms, called the means.

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