Construct an isosceles triangle whose base is 8 cm

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Construct an isosceles triangle whose base is 8cm and altitude is 4 cm. Then draw the another triangle whose sides are 3/2 times of the corresponding sides of isosceles triangle

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Construct line a b of 8 cm
draw a perpendicular bisector of a b
by taking D as center draw an Arc of 4 cm and join DC
join AC and BC the triangle is formed
from a draw an acute angle of any measure
take an arc of 1 cm and cut into three parts b1 b2 b3
join B2 and b
extend B to B ' and joint B3 to b' which is // to B2B
similarly join b'c'//bc
join ac' we get the new triangle i.e. ab'c'

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