Question 20 (5 points) Determine the possible side lengths of the third side of a triangle with known side lengths 3 and 6.

Question 20 options:

3 < c < 9

–6 < c < 9

–3 < c < –9

3 < c < 6

Question 21 (5 points)
In the given triangle ABC, find DE.

An image of a triangle ABC, where mid segment line segment DE = x + 2 and line segment BC = 8x - 14.

Question 21 options:

2.5

10

20

5