CONE

The lateral surface  area of a Cone of radius 'r' , slant height 'l'and height 'h' is

• π l (r+l) sq.unit
• π r² h sq.unit
• 2π r h sq.unit
• π r l sq.unit

What is the curved surface area of the cone of radius 7cm and slant height 7cm ?

• 154 cm

• 155 cm

• 154 cm²

• 154 m²

Answer explanation

C.S.A OF CONE = πrl

= 22/7 * 7*7

= 22 * 7

= 154 cm²

Find the lateral surface area of a cone with radius 5cm and slant height 8cm

• 40π cm²

• 45π cm²

• 50π cm²

• 55π cm²

If the radius of a cone is 6cm and height is 8cm, what is the total surface area of the cone?

• 96π cm²

• 100π cm²

• 104π cm²

• 108π cm²

Which type of triangle we observe in the Cone

• Acute angled triangle

• Obtuse angled triangle

• Right angled triangle

• None

What is the formula to find the volume of a cone?

• 1/3 * π * r² * h

• 2/3 * π * r² * h

• π * r² * h

• 4/3 * π * r² * h

Calculate the total surface area of a cone with radius 4cm and slant height 6cm

• 40π cm²

• 42π cm²

• 44π cm²

• 46π cm²

Which of the following is the correct formula for the lateral surface area of a cone?

• π * r * l

• 2π * r * l

• 1/2 * π * r * l

• 3/2 * π * r * l

What is the formula to find the Total Surface Area of the Cone?

• 2πrl

• πrl

• πr²

• πr ( l+r )

What is the shape of the base of the Cone ?

• Square

• Circle

• Triangle

• Rectangle