For a discharge of triangular weirs with notch angle __________ the formula is 0.685 h2.45.

For a discharge of triangular weirs with notch angle __________ the fo

1.	For a discharge of triangular weirs with notch angle __________ the formula is 0.685 h^2.45.
A.	90<sup>o</sup>
B.	60<sup>o</sup>
C.	30<sup>o</sup>
D.	45<sup>o</sup>
Answer» D. 45<sup>o</sup>