Question 28 (OR 2nd question) Draw a line segment of length 8 cm and divide it in the ratio 2:3
Steps of construction:
Draw line segment AB of length 8 cm
Draw any ray AX,
making an acute angle with AB.
Mark 5 (= 2 + 3) points ๐ด_1, ใ ๐ดใ_2, ๐ด_3, ๐ด_4, ๐ด_5 on AX such that ใ๐ด๐ดใ_1=๐ด_1 ๐ด_2=๐ด_2 ๐ด_3โฆโฆ. by drawing equal arcs
Join ใ๐ต๐ดใ_5.
Since we want the ratio 2 : 3,
Through point ๐ด_2 (m = 2), we draw a line parallel to ๐ด_5 ๐ต
by making โ AA5B = โ AA2C
So, we copy โ AA5B from point A5
Thus, AC : CB = 2 : 3.
On measuring AC and BC by scale.
AC = 3.2 cm & BC = 4.8 cm

Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 13 years. He provides courses for Maths, Science, Social Science, Physics, Chemistry, Computer Science at Teachoo.

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