Answer: All sides are 5cm hope this helps...
Answer:5π/12
Step-by-step explanation:
180°=π
75°=x
x=75π ➗ 180
x=5π/12
they are giving you the answer AB=AC, so what that means is that the angles are congruent to each other so if angle AC=15 and angle DC=5 all the angles will be the same.
So basically, for this you would be combining like-terms and simplifying. This will give you -3a^8+65a^5
