The difference between the sum of the angles of a plane triangle and the sum of the angles of a spherical triangle is one second when the triangle on the earth surface has an area of about

The difference between the sum of the angles of a plane triangle and t

1.	The difference between the sum of the angles of a plane triangle and the sum of the angles of a spherical triangle is one second when the triangle on the earth surface has an area of about
A.	105 sq.km.
B.	135 sq.km.
C.	159 sq.km.
D.	195 sq.km.
Answer» E.

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The difference between the sum of the angles of a plane triangle and the sum of the angles of a spherical triangle is one second when the triangle on the earth surface has an area of about

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