Since you know the value of s, you can substitute/plug it into the equation to find A:
A = 18s² Plug in 1/3 into "s" since s = 1/3
Find (1/3)²

A = 2 square inches
1. We don't know the meaning of "{There is a box image here}".
If you're dealing with congruent figures, match the corresponding letters in the name of the figure:
.. E F G H
.. Q R S T
If you're concerned with QT (1st and 4th letters), you need to look at EH (1st and 4th letters).
If EFGH ≅ QRST, then QT = EH = 6.3.
2. LM = ST = 5.2
We know that circumference = diameter * 3.14, so in order to find the diameter all we have to do is:
circumference/3.14 = diameter
So, we can plug in the value of the circumference:
34 / 3.14 = 10.82
The exact answer is 10.82.
The approximate answer is 11.
95° because the angle is mirrored with the other side