1.

In the given figure we have angle1=angle3 and angle2=angle4 show that angleA=angleC

Answer»

Solution :In the given figure it is given that

`angle1 =angle3 and angle2=angle4`
By Euclid 's Axionm 2 we KNOW that when equals are added to equals the wholes are equals
`THEREFORE angle(1)+angle(2)=angle(3)+angle(4) rarr angle(A)=angle(C )`
HENCE `angle(A)=angle(C )`


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