A table lamp is in the shape of the frustum of a right circular cone whose curved area is $1200 m^{2}$ and the area of the base and top is $2400 m^{2}$ . Find the total surface area of the frustum cone.

1600 m^{2}

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2600 m^{2}

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3600 m^{2}

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4600 m^{2}

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Solution

The correct option is A $3600 m^{2}$
Total surface area $=$ Curved surface area + Area of the base and top
$= 1200 + 2400$
$= 3600 m^{2}$

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A table lamp is in the shape of the frustum of a right circular cone whose curved area is 1200m2 and the area of the base and top is 2400m2. Find the total surface area of the frustum cone.

The correct option is A 3600m2Total surface area = Curved surface area + Area of the base and top=1200+2400=3600m2

A table lamp is in the shape of the frustum of a right circular cone whose curved area is $1200 m^{2}$ and the area of the base and top is $2400 m^{2}$ . Find the total surface area of the frustum cone.

The correct option is A $3600 m^{2}$
Total surface area $=$ Curved surface area + Area of the base and top
$= 1200 + 2400$
$= 3600 m^{2}$