Atriangle has a height of 18 centimeters and a base of 3.5 centimeters. what is the area of the triangle?

Find the length of the following tangent segments to the circles centered at o and o' whose radii are 5 and 3 respectively and the distance between o and o' is 12. what is the tangent segment of cd?

Complete the equation of the line through (−10,3) and (−8,−8). use exact numbers.

In the xy-plane, if the parabola with equation passes through the point (-1, -1), which of the following must be true?