MATHEMATICS OBJ:
01-10: CBCADABBCD
11-20: ACBADACABC
21-30: CDCAAADACD
31-40: CADACBAABC
41-50: ABAADADBBB
WAEC
2a.
|Hyp|² = |opp|² + |adj|²
X² = 20²+15²
X²=400+225
X²=625
X √625 =25KM
2b.
The bearing of Y from Z
cos Y = x²+z²-y²
_
2xz
costita = 25²+15²-20²
_
2 * 25 * 15
Costita = 450
__
750
Costita = 0.6
Tita = cos-¹ (0.6)
Tita = 53.13⁰
:. The bearing of Y from Z is (360-53.13)
=306.87
≈307⁰
Good but why now everything
How sir, Pls explain better