Locus of the Points Equidistant From Two Given Points
Construct an ...
Question
Construct an isosceles triangle whose base is 8cm and altitude 4cm and then another triangle whose sides are 112 times the corresponding sides of the isosceles triangle.
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Solution
Steps of construction:
1. Draw a base BC of length 8cm.
2. Draw the perpendicular bisector of BC and name it PQ. Let it intersect BC in M.
3. From M, mark an arc A at a distance of 4cm on PQ.
4. Join B−A and C−B. △ABC is the first isosceles triangle.
5. Extend BC and BA. Place the pointed end of the compass at C and mark an arc of radius CM on the opposite side of M on the extended segment BC. Mark the point as D (Since CM is half of BC, BD will be BC+0.5BC=1.5BC)
6. From D, draw a line parallel to AC and let it intersect the extended segment AB at E.