Asmall painting has an area of 400 cm^2. the length is 4 more than twice the width. find the dimensions of the pool. solve by completing the square. round answers to the nearest tenth.

i'm assuming it's looking for the missing length, which should be 4cm

hope this !

d) by the cross product property, ab^2 = bc multiplied by ad

step-by-step explanation:

we are given

in the given triangle abc

angle a is 90° and segment ad is perpendicular to segment bc

we can see that

triangle(abc) and triangle(abd) are similar because they have common side and same angle (90 degree)

so, triangles(abc) and abd are similar

since, they are similar

so, the ratio of their sides must be equal

we get

now, we can cross multiply

and we get

so, this could be step to prove it