I need help please thanks .

Area = 119.2415 cm^2

Step-by-step explanation:

This is a cone on its head.

The total surface area can be calculated using the formula for the area of a cone.

Mathematically,

The Area A = 2πr(r + l)

where r = radius of the circular base which is 1/2 * D.

D is the diameter given as 3.5

so r = 3.5/2 = 1.75 cm

l = slant height = 9.1 cm

and π = 3.14

Plugging these values into the equation of A, we have;

A = (2 * 3.14 * 1.75)(1.75 + 9.1)

A = 10.99(10.85)

A = 119.2415 cm^2

the solution is 12x-6y

(sin 42)/31. = sinx)/37

sinx = 37 (sin42)/31

= 37× 0.66/31 = 0.787

x= 51.9

other angle opposite to y = 180-51.9-42

= 180- 93.9 =86.1

so

sin42)/31 = sin 86.1)/y

0.021 = 0.997 /y

y= 0.997/0.021 =47.47