Aprēķins: 5vP9lA - 1
S =
π
+r+(r+l)
π
+r+(r+l)|
|
S = π+r+(r+l)$$S$$ = $$\pi+r+(r+l)$$
+r+(r+l)$$S$$ = $$\pi+r+(r+l)$$S = π+ 2* r+l$$S$$ = $$\pi+2\cdot r+l$$
+ 2* r+l$$S$$ = $$\pi+2\cdot r+l$$+r+(r+l)|
|
+r+(r+l)$$S$$ = $$\pi+r+(r+l)$$+ 2* r+l$$S$$ = $$\pi+2\cdot r+l$$