24
x
^2
+
54
x
+
21,
if you would like me to explain how to do it, I can in the comments.
That would be 400 / 28 = 14.29 gallons to nearest hundredth
Answer:
73.5 yd squared
Step-by-step explanation:
The formula for finding an area of a triangle is Base x Height divided by 2, so 21 x 7 = 147 and dividing that by 2 gets you 73.5.
Well flat means open so 180°
180° - 50° = 130° is the answer