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Mensuration – II (Area of Circle) — MATHS STD 7 — Question

Gujarat BoardEnglish MediumSTD 7MATHSMensuration – II (Area of Circle)2 Marks
Question
Find the area of a circle whose radius is:
$2.1\ m.$
✓

Answer

We know that the area $A$ of a circle of radius $r$ is given by $A =\pi\text{r}^2$
Here, $r =2.1\text{m}$
$\therefore\text{A}=\frac{22}{7}\times\text{2.1}^2=13.86\text{m}^2$

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