Question

# Curved surface area of a right circular cylinder is $$4.4$$ m$$^{2}$$. If the radius of the base of the cylinder is $$0.7$$m, find its height.

Solution

## Given:$$\Rightarrow$$$$R=0.7$$m$$\Rightarrow$$CSA$$=4.4$$ m$$^{2}$$Let's assume height be $$x$$$$\Rightarrow$$$$2\pi rh=4.4$$ m$$^{2}$$ $$\Rightarrow$$$$2\times\dfrac{22}7 \times 0.7x=4.4$$$$\Rightarrow$$$$x=\cfrac{4.4\times 7}{2\times 22\times 0.7}=1$$m$$\Rightarrow$$Height $$=1$$mMathematicsRS AgarwalStandard IX

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