19,941.
A.
48cm3
B.
6Ocm3
C.
96cm3
D.
120cm3
E.
24Ocm3
Correct answer is A
Volume = base area x height
= 1/2 x 4 x 3 x 8
= 48cm3
19,942.
A.
64πcm2
B.
12Oπcm2
C.
184πcm2
D.
200πcm2
E.
32Oπcm2
Correct answer is C
No explanation has been provided for this answer.
19,943.
A.
21cm2
B.
4Ocm2
C.
8Ocm2
D.
150cm2
E.
300cm2
Correct answer is B
No explanation has been provided for this answer.
19,944.
A.
6400πkm
B.
6400km/π
C.
3200πkm
D.
3200km
E.
3200km/π
Correct answer is C
P(67°W, 0°N)
Q(67°W 90°N), R = 6400km
Distance PQ =
90/360 x 2 x 6400 π
= 3200πkm
19,945.
MZ = 152 - 122 = 9cm
YZ = 9 + 5 = 14cm
A.
9cm
B.
12cm
C.
14cm
D.
19.85cm
E.
23cm
Correct answer is C
XM = √132 - 52 = 12cm
MZ = 152 - 122 = 9cm
YZ = 9 + 5 = 14cm
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