If the radius and slant height of a cone are in the ratio 4 ratio 7 and its curved surface is 792 cm square then find its radius
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Answered by
8
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_____Here's your Answer _______
Given;
Ratio of Radius and height is 4:7.
let the Radius of cone be 4x and Height be 7x.
Now,
Curved Surface Area of Cone
=> 792 = 22/7 × 4x × 7x
=> x² = (792× 7)/(22× 4× 7)
=> x² = 9
=> x = √9
=> x = 3 cm
Now,
Radius = 4x = 12 cm.
Height = 7x = 84 cm.
✔✔✔
_____Here's your Answer _______
Given;
Ratio of Radius and height is 4:7.
let the Radius of cone be 4x and Height be 7x.
Now,
Curved Surface Area of Cone
=> 792 = 22/7 × 4x × 7x
=> x² = (792× 7)/(22× 4× 7)
=> x² = 9
=> x = √9
=> x = 3 cm
Now,
Radius = 4x = 12 cm.
Height = 7x = 84 cm.
✔✔✔
Answered by
1
Given;
Ratio of Radius and height is 4:7.
let the Radius of cone be 4x and Height be 7x.
Now,
Curved Surface Area of Cone
= >\pi \times r \times l=>π×r×l
=> 792 = 22/7 × 4x × 7x
=> x² = (792× 7)/(22× 4× 7)
=> x² = 9
=> x = √9
=> x = 3 cm
Now,
Radius = 4x = 12 cm.
Height = 7x = 84 cm.
✔✔✔
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