Two hemisphere are joined together so that they just cover the cylinder radius 3cm and height 8cm , what will be the radius of sphere formed
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Answer:
radius of the sphere is 5cm
Step-by-step explanation:
height of cylinder,h =8cm
radius,r=3 cm
The sphere touches the top and bottom corners of the cylinder . so it is enough to find the distance between the top right/left corner of cylinder and the centre point of radius
Draw a line joining the top right corner and centre if radius . now u know the radius =3 , height from top to radius line = 4 .. now use pythogoras theorum to find slant length or radius of sphere
i.e:. 4² + 3³ = (sphere radius)²
16+9 = R²
25=R²
R=5
Gud luck..✌️
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