State what additional information is required in order to know that the triangles are congruent for the reason given.

Select the number of ways in which a line and a circle can intersect

Afamily has five members. a mom, a dad, two sisters, & a brother. the family lines up single file. what is the probabillity that the mom is at the front of the line

In the diagram, ab is tangent to c, ab = 4 inches, and ad = 2 inches. find the radius of the circle.