A Cylindrical container has a radius of 70cm and height of 20cm. How many litres of water can it hold when it is full?

Ujazo wa silinda ($V$) hutolewa na fomula:

$$V = \pi r^2 h$$

ambapo $r$ ni rediasi na $h$ ni urefu.

Tunapewa $r = 70 \ cm$ na $h = 20 \ cm$. Tutatumia $\pi = \frac{22}{7}$.

$$V = \frac{22}{7} \times (70 \ cm)^2 \times (20 \ cm)$$

$$V = \frac{22}{7} \times (4900 \ cm^2) \times (20 \ cm)$$ $$V = 22 \times (700 \ cm^2) \times (20 \ cm)$$ $$V = 22 \times 14000 \ cm^3$$ $$V = 308000 \ cm^3$$

Tunajua kuwa $1 \ L = 1000 \ cm^3$.
Ili kubadilisha $cm^3$ kwenda lita, tunagawanya kwa 1000.

$$V_{lita} = \frac{308000 \ cm^3}{1000 \ cm^3/L}$$ $$V_{lita} = 308 \ L$$

Chombo hicho kinaweza kushika lita 308 za maji kikiwa kimejaa.

$$\text{308 L}$$