Find the area of x^2+ y^2= 49: - Vidyadip

MCQ

Find the area of $x^2+ y^2= 49:$

✓
$154$
B
$49$
C
$88$
D
None

✓

Answer

Correct option: A.

$154$

The equation $x^2+ y^2= 49$ describes a circle with $7$ as radius So the area is given as $\pi\text{r}^2$
$=\frac{22}{7}\times7^2$
$=154$

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