pr/ac = ?/cb

pr=6,ac=?, cb=15

If both ? symbols represent the same number (which I will call x) then

6/x = x/15
x^2 = 90
x = 9.4868

i need terms fpor geometric shapes and cant find any anywhere

I need help desperately with geometry. the geometry is Area: Parallelograms, Triangles, and Trapezoids. It's really hard for me. Only if you get the concept. Anyway, Pleaswe help me!!!!!!!!!!

define volumen .define surface area.how i find the surface area of the prism?

what is a plane

AC=12, AB=34,CB=

To find the value of ac, we can use the concept of proportionality. In the given expression, we have pr/ac = ?/cb, where pr is 6 and cb is 15.

We can rewrite the proportion as pr/cb = ac/? and substitute the given values: 6/15 = ac/?.

To solve for ac, we can cross multiply:

6 * ? = 15 * ac

Now, we can simplify the equation:

? = (15 * ac) / 6

To find the value of ac, we can substitute the value of ? into the equation:

? = (15 * ac) / 6
6 * ? = 15 * ac
ac = (6 * ?) / 15

Substituting the given value of ? (which is not specified in the question), we can find the value of ac.