The additive identity of rational numbers is: * 0 points
I. 0
II. 1
III. 2
IV. -1

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.

What happens to the area as the sliders are adjusted? what do you think the formula for the area of a triangle is divided by 2?

Find two numbers if their sum is 91 and the ratio is 6: 7?