Mathematics
Three isosceles triangles PBC, QBC and RBC are on the same base, then :
P, Q and R are collinear.
△PQR is isosceles triangle.
Q lies on the circumference of a circle with BC as diameter.
Q is mid-point of line segment PR.
Locus
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Answer
Steps of construction :
Draw a line segment BC.
Draw XY, perpendicular bisector of BC.
![Three isosceles triangles PBC, QBC and RBC are on the same base, then : Loci, Concise Mathematics Solutions ICSE Class 10.](https://cdn1.knowledgeboat.com/img/cm10/q1-b-ty-loci-maths-concise-icse-class-10-solutions-992x1128.png)
We know that,
Locus of a point equidistant from two given points is the perpendicular bisector of the line joining the two points.
Thus, any point on the line XY is at equal distance from B and C.
∴ P, Q and R lies on the line XY.
Hence, Option 1 is the correct option.
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Related Questions
Construct a triangle ABC, with AB = 6 cm, AC = BC = 9 cm. Find a point 4 cm from A and equidistant from B and C.
The locus of point which is equidistant from two non-parallel lines AB and CD is :
perpendicular to AB.
perpendicular to CD.
bisector of angle between AB and CD.
perpendicular bisector of CD.
Locus of the centers of the circles passing through two fixed points A and B is :
a line parallel to line segment AB.
the bisector of the line segment AB.
perpendicular to line segment AB.
perpendicular bisector of line segment AB.
A point is equidistant from the sides of an obtuse angle triangle. The point is called :
circumcenter of the triangle.
incenter of the triangle.
centroid of the triangle.
orthocenter of the triangle.