A SECTOR IS USED TO FORM ACONE IF THE RADIUS AND ANGLE OF THESECTOR IS 8CM AND 160 DEGREE RESPECTIVELY CALCULATE, THE RADIUS OF THE CONE ,VERTICAL HEIGHT, VERTICAL ANGLE, VOLUME AND TOTAL SURFACE AREA OF THE CONE

Answer 1

As usual, draw some pictures showing how the sector rolls up to form a cone.

since s = rθ, the circumference of the cone is 8*(8/9 π) = 64π/9

The radius of the sector is the slant height of the cone.

The radius of the base of the cone is (64π/9)/2π = 32/9.

So, the height of the cone is

h^2 = 8^2 - (32/9)^2

Now you can answer stuff about the cone.

Answer 2

Find the value of log 1 base 3.