WAEC - Mathematics (1997 - No. 40)
Two sides of a triangle are perpendicular. If the two sides are 8cm and 6cm, calculate correct to the nearest degree, the smallest angle of the triangle.
35o
36o
37o
38o
53o.
解释
tanθ = 6/8 = 0.75
θ = tan\(^{-1}\) (0.75)
= 37°