Calculate the volume of a cylinder with a radius 70cm and height of 100cm use π=22/7.

The volume $V$ of a cylinder is given by the formula:

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

where $r$ is the radius and $h$ is the height.

Given $r = 70$ cm, $h = 100$ cm, and $\pi = \frac{22}{7}$.

$$V = \frac{22}{7} \times (70 \text{ cm})^2 \times (100 \text{ cm})$$

$$V = \frac{22}{7} \times (4900 \text{ cm}^2) \times (100 \text{ cm})$$ $$V = 22 \times \frac{4900}{7} \text{ cm}^3$$ $$V = 22 \times 700 \text{ cm}^3$$ $$V = 154000 \text{ cm}^3$$

The volume of the cylinder is $\text{154000 cm}^3$.