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दिइएको चित्रमा O वृत्तको केन्द्रबिन्दु हो । जहाँ \(\angle PSR = x^\circ\) र \(\angle PQR = 2x^\circ\) दिइएका छन् । In the given figure, O is the…

SEE Class 10 Compulsory Maths · 2082 · Solved Question with Answer

दिइएको चित्रमा O वृत्तको केन्द्रबिन्दु हो । जहाँ \(\angle PSR = x^\circ\) र \(\angle PQR = 2x^\circ\) दिइएका छन् ।

In the given figure, O is the centre of the circle. Where \(\angle PSR = x^\circ\) and \(\angle PQR = 2x^\circ\) are given.

[Figure: Circle with centre O and cyclic quadrilateral PQRS; angle PSR = x degrees and angle PQR = 2x degrees]

(a) चक्रीय चतुर्भुजको सम्मुख कोणहरूबिचको सम्बन्ध लेख्नुहोस् ।

Write the relation between the opposite angles of a cyclic quadrilateral.

(b) दिइएको चित्रबाट \(x\) को मान निकाल्नुहोस् ।

Find the value of \(x\) from the given figure.

(c) केन्द्रीय कोण POR, परिधि कोण PSR को दुईगुणा हुन्छ भनी प्रयोगात्मक परीक्षण गर्नुहोस् । (कम्तीमा 3 से.मि. अर्धव्यास भएका दुईओटा वृत्तहरू आवश्यक छन् ।)

Verify experimentally that the central angle POR is twice the circumference angle PSR. (Two circles with at least 3 cm radii are necessary.)

(d) प्रमाणित गर्नुहोस् (Prove that): \(\angle QPO + \angle QRO = 120^\circ\)

Solution

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