Answer:
i am pretty sure it's a.
Step-by-step explanation:
i hope this helps :)
The distance between the points is 10.
If it is 63 in across, and each part is equal, the equation so solve this is: 63=3x
So, you take 63=3x and divide each side by 3
63/3=3x/3
Then simplify
21=x
This means each panel is 21 inches wide.
Let

be the radius of the cone's base and

the slant height.
The surface area of a cone is

If the radius is quadrupled (

) and the slant height scaled by a factor of

, then the new area is

130 cm = 1,30 m
55 mm = 0,055 m
Sum = 1,355 m