show procedure plzzz .
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(4) 360 degree.......
hope this will helpful for you..
Rahul
hope this will helpful for you..
Rahul
Answered by
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angle DCA = angle CAB + angle ABC
angle EAB = angle ACB + angle ABC
angle CBF = angle CAB + angle ACB
Now angle DCA + angle EAB + angle CBF =
angle CAB + angle ABC + angle ACB + angle ABC + angle CAB + angle ACB = 2 angle ABC + 2 angle CAB + 2 angle ACB = 2 (angle ABC + angle CAB + angle ACB) = 2*180° = 360°
angle EAB = angle ACB + angle ABC
angle CBF = angle CAB + angle ACB
Now angle DCA + angle EAB + angle CBF =
angle CAB + angle ABC + angle ACB + angle ABC + angle CAB + angle ACB = 2 angle ABC + 2 angle CAB + 2 angle ACB = 2 (angle ABC + angle CAB + angle ACB) = 2*180° = 360°
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