Question
वृत्त $x^2+y^2=4$ का क्षेत्रफल है-

Answer

(C) $4 \pi$
वृत्त $x^2+y^2=4 \quad \therefore(x)^2+(y)^2=(2)^2$
वृत्त का क्षेत्रफल $=\pi$ (त्रिज्या $)^2=\pi(2)^2=4 \pi$ उत्तर
अतः सही विकल्प (C) है।

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free