Mathematics, 15.11.2020 17:10 lashaaungas

Volume of cone The diagram shows a sector OACB of a circle with centre 0.
The point is the midpoint of the arc AB
The diagram also shows a hollow cone with vertex 0.
The cone is formed by joining OA and OB.
Curved surface area of coner
o
с
The cone has volume 56,8 cm' and height 3.6 cm.
Calculate the size of angle AOB of sector OACB.
Give your answer correct to 3 significant figures.
You must show all your working.

Volume of cone

The diagram shows a sector OACB of a circle with centre 0.
The point is the midpoi

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Volume of cone The diagram shows a sector OACB of a circle with centre 0.
The point is the mi...