Answer:
Explanation:
Step 1: Find AB Use Pythagoras Theorem
AB =

Step 2: Find the Area of the triangle ABC
Area =
=

Step 3: Find BD. Use the area of the triangle above
Area =

We already known the Area and AC so, we just plug all the number in
BD =
=
=

Step 4: Find DC. Use Pythagoras Theorem of the triangle BDC
DC =
=
=
