The hollow sphere, in which the circus motor cyclist performs his stun

1.	The hollow sphere, in which the circus motor cyclist performs his stunts, has a diameter of 7 m. Find the area available to the motorcyclist for riding.
Answer» Diameter of hollow sphere = 7 m So, radius of hollow sphere = \(\frac{7}{2}\) m = 3.5 cm Now, Area available to the motorcyclist for riding = Surface area of a sphere = 4πr² = 4 × (\(\frac{22}{7}\)) × 3.5² m² = 154 m²

The hollow sphere, in which the circus motor cyclist performs his stunts, has a diameter of 7 m. Find the area available to the motorcyclist for riding.

Answer»

Diameter of hollow sphere = 7 m

So, radius of hollow sphere = \(\frac{7}{2}\) m = 3.5 cm

Now,

Area available to the motorcyclist for riding = Surface area of a sphere = 4πr²

= 4 × (\(\frac{22}{7}\)) × 3.5² m²

= 154 m²