WAEC MATHS ANSWERS 2021

Here is waec mathematics answers for 2021.

*WAEC

Maths-Obj:

1CBCADABBCD

11

21CDCAAADACD

31CADACBAABC

41ABAADADBBB

3a.

|Hyp|² = |opp|² + |adj|²

X² = 20²+15²

X²=400+225

X²=625

X √625 =25KM

3b.

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

(3)

[img]https://i.imgur.com/CzhKUuq.jpg[/img]

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(6a)

[img]https://i.imgur.com/7xf9T2T.jpg[/img]

(6b)

[img]https://i.imgur.com/HM7F0Nz.jpg[/img]

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