1,651.
A.
25.7o
B.
44o
C.
51.43o
D.
98o
E.
114.55o
Correct answer is E
L = 14cm, r = 7cm; \(\theta\)= ?
L = \(\frac{\theta}{360}\) x 2πr
14= \(\frac{\theta}{360}\) x 2π(7)
\(\theta = \frac{360 \times 14}{44}\)
=114.55°
1,652.
Using the above graph, if 10o < x < 60o, what is the value of x for which sin x = cos x?
A.
0o
B.
20o
C.
30o
D.
45o
E.
50o
Correct answer is D
From the graph; when sin x = cos x
x = 45o
1,653.
A.
3.05cm2
B.
8.20cm2
C.
16.20cm2
D.
24.40cm2
E.
48.8cm2
Correct answer is E
Area of ABDE = b x h
12.2 x 4 = 48.8cm 2
1,654.
In the diagram above, ∠SPR = P and ∠SQR = 2x. Find x in terms of P
A.
x = p + 2
B.
x = p - 2
C.
x = p2
D.
x = p/2
E.
x = 2p
Correct answer is D
P = 2x (angle in the same segment);
x = p/2
1,655.
A.
6.8%
B.
7.3%
C.
9.6%
D.
14.4%
E.
15.4%
Correct answer is B
% error =
errorexact
x 1001
=
0.091.23
x 1001
= 7.3%WAEC Subjects
Aptitude Tests