Answer:
<h2>2√14</h2>
Step-by-step explanation:
ΔSQR and ΔTSR are similar. Therefore the sides are in proportion:

We have:
SR = q
QR = 10 + 4 = 14
TR = 4
Substitute:
<em>cross multiply</em>

It's B!------------------------------
Answer:
A=hb b/2
Step-by-step explanation:
area=height(sub)base times base divided by 2
Answer: A. 40
Step-by-step explanation: