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Maths CBSE Live product
Class 7 (2025-26)
A Tale of Three Intersecting lines
Annual Revision II - A Tale of three intersecting lines
2.
TBQ - Does the triangle exist?
Question:
2
m.
Will triangles always exist when a set of lengths satisfies the triangle inequality? How can we be sure? ASDYU90-
Answer:
A triangle is formed only when
two circles touch each other
two circles intersect each other internally
two circles do not intersect each other
.
When the given lengths
satisfy
do not satisfy
the triangle inequality, the circles
intersect internally
do not intersect
, and a triangle
do not exists
will definitely exist
.
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