Answer:
-3
Step-by-step explanation:
<em>r</em> = 12
<em>s</em> = -4
<em>t</em> = -6
<u>Equation</u>
<em>rs</em> ÷ 16
12(-4) ÷ 16
-48 ÷ 16
-3
Two sides are the same length; one angel measures 90°.
Answer:

Step-by-step explanation:

Answer:
Dimensions are 20 + 20 + 40 + 40
Step-by-step explanation:
Answer:
Slope is m= -1
Step-by-step explanation:
Use the slope formula to find the slope m
.
y=mx+b