Q. 44.2( 5 Votes )

Construct a trian

Answer :

Step 1:


Draw a Ray BX and with B as center and radius 4.8cm cut an arc on the line and name it as C.



Step 2:


With B as center and 3.6cm as radius draw an arc.



Step 3:


With C as center and 3cm as radius cut the previous arc at A.



Step 4:


Join AB and AC.



Our Triangle is constructed.


Now we know that the angle opposite to the smallest side is the smallest angle in a triangle.


So ABC is the smallest.


Now bisecting the ABC


Step 5:


With B as center draw an arc that cuts AB and BC at P and Q respectively.



Step 6:


With P as center and radius more than PQ draw an arc then with Q as center and equal radius draw another arc that cuts the previous arc at Z.



Step 7:


Join BZ.



Now by cosine rule we get to know that ABC=40°


So, ABY=YBC=20°.

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