What are the values of a and b? you for .

Step-by-step explanation:

First, I like to draw the triangles so they look the same.  

Now, because the angles from the top triangle are congruent to the triangle on the bottom, they are similar triangles.  Therefore, their sides form a proportion.  From drawing I created, the sides match up as follows:

Next, set up the proportions

Lastly, Use the Pythagorean to solve for b:

2² + 8² = b²

4 + 64 = b

   68    = b²

   2√17 = b

30 units^2

step-by-step explanation:

area is l × w

the length is 3

and the width is 10

3 × 10= 30 units squared

practice. practice. practice.