A square field has a diagonal of $\surd98$ m. What is its area?
A square field has a diagonal of $\surd98$ m. What is its area?
एक वर्गाकार मैदान का विकर्ण $\surd{98}$ मीटर है। इसका क्षेत्रफल क्या हैं?
Detailed Solution & Logic
Correct Answer:
$ 49 m^2 $/ 49 वर्ग मीटर
Solution:
$ \text{For a square, } d^2=2a^2 $
$ d=\sqrt{98} $
$ d^2=98 $
$ 2a^2=98 $
$ a^2=\dfrac{98}{2}=49 $
$ \text{Area}=a^2=49\ \text{m}^2 $
Answer : $49\text{m}^2 $ /49 वर्ग मीटर
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