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Show that the Points P (0, 5), Q (5, 10) and R (6, 3) Are the Vertices of an Isosceles Triangle. - Mathematics

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प्रश्न

Show that the points P (0, 5), Q (5, 10) and R (6, 3) are the vertices of an isosceles triangle.

योग
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उत्तर

PQ = `sqrt((5 - 0)^2 + (10 - 5)^2`
= `sqrt(25+25)`
= `sqrt(50)`
= 5`sqrt(2)`

QR = `sqrt((6 - 5)^2 + (3 - 10)^2`
= `sqrt(1+49)`
= `sqrt(50)`
= 5`sqrt(2)`

RP = `sqrt((0 - 6)^2 + (5 - 3)^2`
= `sqrt(36+4)`
= `sqrt(40)`
= 2`sqrt(10)`

Since, PQ = QR, ΔPQR is an isosceles triangle.

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  क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
अध्याय 28: Distance Formula - Exercise 28 [पृष्ठ ३३५]

APPEARS IN

सेलिना Concise Mathematics [English] Class 9 ICSE
अध्याय 28 Distance Formula
Exercise 28 | Q 11 | पृष्ठ ३३५

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Alia and Shagun are friends living on the same street in Patel Nagar. Shagun's house is at the intersection of one street with another street on which there is a library. They both study in the same school and that is not far from Shagun's house. Suppose the school is situated at the point O, i.e., the origin, Alia's house is at A. Shagun's house is at B and library is at C.

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