Question

આપેલ ખૂણાઓમાના માપમાંથી કયો ખૂણો ફક્ત પરિકરની જોડ અને અંકિત માપપટ્ટીની મદદથી રચી શકાય છે.
(A) 35°
(B) 40°
(C) 37.50°
(D) 47.5°

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Answer 1

Given :  Different angles

To Find : which of the following can be constructed using ruler and pair of compass

A) 35° B)40° C) 37.5° D) 47.5°​

Solution:

Angles can be constructed using ruler and compass if they are multiple of 7.5°

37.5° = 7.5° * 5  

ist we draw 60°

Then angle bisector of 60° and 0°

= 30°

then angle bisector of 60° and 30°  = 45°

Then angle bisector of

30° and 45°   which is 37.5°

Hence 37.5° can be constructed using ruler and pair of compass

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