Celejlial and 'Terrestrial Globes. 293

Z G an arch of the quadrant of altituderepresents the hypothenufe; Z ^ an archof the equator represents the required fideAC equal to 42 0 12', and Ga an archof the meridian; P ^ p equal to 54 0 43',is the measure of the other required side A B,Now having found the side A B, adjacentto the required angle ABC, its measuremay be found by art. 332.

CASE III.PROBLEM LXVIII.

A leg and its adjacent angle beinggiven, to find the rest.

In the right angled triangle ABC, fig.29. are given

The legThe angle

BA

ABC

?■ to find48 00 \

the leg

angle

Hyp.

AC.

ACB.

BC.

334. Fig. 30. elevate the pole P, to 54 043', the quantity of the given leg BA;count the fame from Æ to Z, and six thequadrant at Z; bring that meridian whichpasses through London under the strong

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brass

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