Question

C IV. Match Column 'À with Column 'B' Column-A Column-B 1. AD 1556 (a) Abolition of Jizya 2. AD 1563 (b) Establishment of Ibadat Khana 3. AD 1564 (c) Battle of Haldighati (d) Abolition of Pilgrim tax (e) Akbar becames the ruler of India 4. AD 1575 5. AD 1576​

Answer 1

Answer:

Angles ACD and DCB are a linear pair. Sum of these angles = 180 deg

ACD + DCB = 180 deg

CE is bisector of angle ACD.

CF is bisector of angle DCB.

To prove that angle ECF = 90 deg.

ECF = ECD + DCF = 1/2 ACD + 1/2 DCB

        = 1/2 { angle ACD + angle DCB ] = 1/2 180 deg = 90 deg

Explanation: