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दिइएको चित्रमा O वृत्तको केन्द्रबिन्दु हो । जहाँ \(\angle WXY = x^\circ\) र \(\angle WZY = 3x^\circ\) दिइएको 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 \(\angle WXY = x^\circ\) र \(\angle WZY = 3x^\circ\) दिइएको छन् ।

In the given figure, O is the centre of the circle. Where \(\angle WXY = x^\circ\) and \(\angle WZY = 3x^\circ\) are given.

[Figure: Circle with centre O and cyclic quadrilateral WXYZ; angle WXY = x degrees, angle WZY = 3x degrees]

(a) चक्रीय चतुर्भुजको सम्मुख कोणहरूको योगफल कति हुन्छ ? लेख्नुहोस् ।

What is the sum of the opposite angles of a cyclic quadrilateral? Write it.

(b) दिइएको चित्रबाट x को मान पत्ता लगाउनुहोस् ।

Find the value of x from the given figure.

(c) केन्द्रीय कोण WOY को आधा परिधी कोण WXY हुन्छ भनी प्रयोगात्मक रूपमा परीक्षण गर्नुहोस् । (कम्तीमा 3 से.मी. अर्धव्यास भएका दुईओटा वृत्तहरू आवश्यक छन् ।)

Verify experimentally that the circumference angle WXY is half of the central angle WOY. (Two circles having at least 3 cm radii are necessary.)

(d) प्रमाणित गर्नुहोस् । \(\angle OWZ + \angle OYZ = 135^\circ\)

Prove that: \(\angle OWZ + \angle OYZ = 135^\circ\)

Solution

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