3) In the accompanying diagram of right triangle ABC, CD is drawn perpendicular to hypotenuse AB
D
If AB = 16 and DB = 4, find BC. [Show all work.]
16

Step-by-step explanation:

The picture of the question in the attached figure

we know that

Triangle ABC is similar to Triangle CBD by AA Similarity theorem

Remember that

If two triangles are similar, then the ratio of its corresponding sides is proportional

so

substitute the given values

Remember that

therefore

solve systems of equations by graphing. a system of linear equations contains two or more equations e.g. y=0.5x+2 and y=x-2. the solution of such a system is the ordered pair that is a solution to both equations. to solve a system of linear equations graphically we graph both equations in the same coordinate system