780 is what percent of 540?

Radii ok and nl are perpendicular to om because of the radius-tangent theorem. by definition of perpendicular, angles kom and lnm are right angles. this means that triangles kom and lnm are right triangles. angle lmn is common to both right triangles, so by the triangles kom and lnm are similar.

Abcd is a parallelogram find the valuse of x

For how answer my question this will be the last question can you answer in math subject