Question

△ABC
△
𝐴
𝐵
𝐶
is plotted on a coordinate plane.

If D is the is the midpoint of BC¯¯¯¯¯¯¯¯
𝐵
𝐶
¯
, what is the length of median AD¯¯¯¯¯¯¯¯
𝐴
𝐷
¯
?

(2 points)
Responses

5.3
5.3

5.8
5.8

9.7
9.7

8.1

Answer 1

I can’t determine the length without the coordinates or the diagram of A, B, and C. Please either paste the coordinates of A, B, and C or upload the picture.

How to get the answer once you have them:
1. Find D, the midpoint of BC: D = ((x_B + x_C)/2, (y_B + y_C)/2).
2. Compute the distance AD using the distance formula:
AD = sqrt[(x_A − x_D)^2 + (y_A − y_D)^2].
3. Round to one decimal place and match to one of the choices (5.3, 5.8, 9.7, 8.1).

If you give the coordinates or the image, I’ll calculate AD and pick the correct choice.