Surveying
Pick up the incorrect statement from the following. In a spherical triangle

Sum of the three angles less than six right angles and greater than two right angles
Sum of the three angles is equal to two right angles
Sum of any two sides is greater than the third
Every angle is less than two right angles

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Surveying
The length of a chain is measured from

centre of one handle to centre of other handle
outside of one handle to outside of other handle
inside of one handle to inside of other handle
outside of one handle to inside of other handle

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