Answer:
ok. Where is the Question
We know that
[Area of a circumference]=pi*r²
for r=18.8 m
Area=pi*18.8²=1109.80 m²
if the area for 2pi radians (full circumference) is --------------> 1109.80 m²
for 2pi/15----------------------------------> X
X=(2pi/15)*1109.80/2pi----------> 73.99
the answer is 73.99 m²
You must rewrite the formula for t.
x = t - yz
-t = -x - yz
t = x + yz