3 equal sides
138+5,
17X-19
"L
J
88 +35

I'm going to need a little more than this. Or you to describe the question better.

Assuming that the equation is

138+5=17x-19=L?

Each side is 143 cm long. (I am also assuming measurements.)

So take 143+19, and you get 160. Divide that by 7, and you get about 22.8571. It doesn't seem like the right answer...

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

there is nothing below so i cannot

step-by-step explanation: