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

4

step-by-step explanation:

a is the correct

the 8 in 8,420 is in the thousands place so it's value is 8 thousand.

the 8 in 6,870 is in the hundreds place so it's value is 8 hundred.

divide 8000 by 800 to find the answer:

8000 / 800 = 10

the 8 in 8,420 is 10 times greater than the 8 in 6,870

central angle of a triangle has the same measure as its intercepted arc.

step-by-step explanation: