The total area of the blades is the area of a triangle multiplied by 4.
We have then:

Where,
b: base of the blades
h: height of the blades
Substituting values we have:

Doing the calculation we have that the area of the blades is given by:

Answer:
The total area of the blades is:

Answer:
98
Step-by-step explanation:
180- 122 = 58
58 + 24= 82
180- 82= 98
Switch the x and y values and isolate y, then simplify.
x=6y+5
6y=x-5
y=1/6x-5/6
Answer:
-12/5
Step-by-step explanation:
-4 * 9 = -36 (numerator)
3 * 5 = 15 (denominator)
Take 3 out of both to simplify.
-36/3 = -12
15/3 = 5
Final Answer:
-12/5
Your answer is 3/5, the picture below shows how sin cos tan work!