The answer is CB, AC, and AB
Y=Mx+b ddd d d d d d sans
<h2>
Answer:</h2>

<h2>
Step-by-step explanation:</h2>
For a better understanding of this problem, see the figure below. Our goal is to find
. Since:

and
is a common side both for ΔMRN and ΔMQN, then by SAS postulate, these two triangles are congruent and:

By Pythagorean theorem, for triangle NQP:

Applying Pythagorean theorem again, but for triangle MQN:

Formula= Base times height divided by 2
6 x 7= 42
42/ 2
answer= 21