Answered

Westonci.ca makes finding answers easy, with a community of experts ready to provide you with the information you seek. Discover solutions to your questions from experienced professionals across multiple fields on our comprehensive Q&A platform. Discover in-depth answers to your questions from a wide network of professionals on our user-friendly Q&A platform.

I need help .. please

I Need Help Please class=

Sagot :

jcherry99

Answer:

AD = 4.5

Step-by-step explanation:

Since the two bases of the two given triangles are parallel the triangles are similar.

Triangle BDE is similar to Triangle BAC

From this the following proportion can be set up.

BE / BC = BD/BA

BE = 8

BC = 8+12 = 20

BD = 3

BA = 3 + x     where x = DA

8/20 = 3/(3+x)               Cross Multiply

8(3 + x) = 3 * 20            Remove the brackets on the left. Combine Right

24 + 8x  = 60                Subtract 24 from both sides

8x = 60 - 24                  Combine the right

8x = 36                          Divide by 8

x = 36/8

x = 4.5

But x = AD

We appreciate your visit. Our platform is always here to offer accurate and reliable answers. Return anytime. We appreciate your time. Please revisit us for more reliable answers to any questions you may have. Westonci.ca is committed to providing accurate answers. Come back soon for more trustworthy information.