Answer: 
Step-by-step explanation:
If we draw RP and PS, then in the quadrilateral formed, we know that 
, and since angles in a quadrilateral add to 360 degrees, this means 
.
Thus, arc RS also measures 126 degrees
Answer:
The first one is -1/2
the second one is x+2y-27=0
The answer is 107
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Given:
Volume of the cone = π r² h/3
radius of the cone is half the radius of the cylinder ⇒ r/2
height of the cone is equal to the radius of the cylinder. ⇒ r
V = 3.14 * (r/2)² * r/3
V = 3.14 * r²/4 * r/3
V = 3.14r³ / 12
