Question

The data from a closed traverse survey PQRS (run in the clockwise direction) are given in the table LineIncluded angle
(in degree)

PQ	88
QR	92
RS	94
SP	89

The closing error for the traverse PQRS (in degrees) is

• A. 3

Answer 1

The correct option is A 3
n=4 (number of sides of closed traverse)

$(2n-4)\times {90}^{\circ }={360}^{\circ }$

So, error in included angle

$=(88+92+94+89)-360=+3^{\circ }$