Which two-dimensional figure will create a cone with a radius of 3.5 and a height of 7? A triangle has sides lengths of 7 and 3.5. A line of rotation is at the point opposite to the side with length 7.

A triangle has sides lengths of 7 and 3.5. A line of rotation is at the side with length 3.5.

A triangle has sides lengths of 7 and 3.5. A line of rotation is at the side with length 7.

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Step-by-step explanation:

its last one

Step-by-step explanation:

A triangle has sides lengths of 7 and 3.5. A line of rotation is at the side with length 7.

(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

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