Sprendimas: f3FdGj - 1
S =
π
* R* ( 2* h+r)
π
* R* ( 2* h+r)|
|
S = π* R* ( 2* h+r)$$S$$ = $$\pi\cdot R\cdot (2\cdot h+r)$$
* R* ( 2* h+r)$$S$$ = $$\pi\cdot R\cdot (2\cdot h+r)$$S = 2* h* R* π+ r* R* π$$S$$ = $$2\cdot h\cdot R\cdot \pi+r\cdot R\cdot \pi$$
+ r* R* π$$S$$ = $$2\cdot h\cdot R\cdot \pi+r\cdot R\cdot \pi$$S = 2* R* h* π+ R* r* π$$S$$ = $$2\cdot R\cdot h\cdot \pi+R\cdot r\cdot \pi$$
+ R* r* π$$S$$ = $$2\cdot R\cdot h\cdot \pi+R\cdot r\cdot \pi$$