Jharkhand Board (JAC) - Class 8

Core Middle Math question bank (Mathematics (गणित - NMMS & Akanksha 40 Foundation))

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Q1.

क्षेत्रमिति (Mensuration - NMMS Prep): 'परिमेय संख्याएं (Rational Numbers)' के समलंब चतुर्भुज / बेलन का क्षेत्रफल क्या होगा?

(A)

क्षेत्रफल $= \frac{1}{2} (a + b) \times h$ अथवा वक्रपृष्ठ $= 2\pi r h$ (परिमेय संख्याएं (Rational Numbers))

(B)

भुजा $\times$ भुजा

(C)

आधार $\times$ ऊंचाई

(D)

इनमें से कोई नहीं

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Q2.

बीजीय व्यंजक एवं सर्वसमिकाएं (Akanksha 40 Foundation): 'परिमेय संख्याएं (Rational Numbers)' के अनुसार $(a - b)^2$ का विस्तार क्या है?

(A)

$a^2 - 2ab + b^2$ (परिमेय संख्याएं (Rational Numbers))

(B)

$a^2 + b^2$

(C)

$a^2 + 2ab + b^2$

(D)

$(a + b)^2$

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