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Oracle Geometry Quiz-1

Question 1

Time: 00:00:00

What is the area of an equilateral triangle of side 16cm ?

243 cm2

643 cm2

110.84 cm2

323 cm2

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Question 2

Time: 00:00:00

Consider the following figure. <A=x+30; <D= x-40. Find <B?

125o

55o

155o

122o

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Question 3

Time: 00:00:00

Find the area of a square, the product of whose diagonals is 66 cm^{2}

30 cm2

33 cm2

36 cm2

42 cm2

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X^{2} = 66

x= under root 66

length of diagonal = root 2 a

s = root 66 / root 2

side^{2} = 33 cm^2

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Question 4

Time: 00:00:00

A 5 cubic centimeter cube is painted on all its side. If it is sliced into 1 cubic centimeter cubes, how many 1 cubic centimeter cubes will have exactly one of their sides painted?

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Question 5

Time: 00:00:00

Find the area of a trapezium whose parallel sides are 20 cm and 18 cm long, and the distance between them is 15 cm.

225 cm2

275 cm2

285 cm2

315 cm2

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Question 6

Time: 00:00:00

Examine the figure. <ADB=25o; Find <OBC:

115o

25o

50o

65o

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Question 7

Time: 00:00:00

The sector of a circle has the radius of 21 cm and central angle 1350. Find its perimeter.

91.5 cm

93.5 cm

94.5 cm

92.5 cm

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Question 8

Time: 00:00:00

The volumes of two cones are in the ratio of 1:10 and the radii of the cones are in the ratio of 1:2, what is the ratio of their vertical heights?

2 : 5

1 : 5

3 : 5

4 : 5

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["0","40","60","80","100"]

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