You would use the Pythagorean Theorem a²+b²=c² and re-arrange to get a²=c²-b² then you would put the numbers in and get a²=130²-50² so a²=14400 and if you square root that you get 120. So the height of the mast is 120 feet.
The total area is 84m.
Work is in the image, feel free to ask if you don’t understand it.
Hope this helped :)
Answer:
12 tablespoons of butter
Step-by-step explanation:
Create a proportion:
= 
Cross multiply:
1/3x = 4
x = 12
= 12 tablespoons of butter
Answer:D
Step-by-step explanation:
D is a better deal since a yard costs the least amount of $2.57