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11+
11-Plus Maths
Perimeter And Area 3 (Medium)
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Q.1
The area of a right-angled triangle is 108 cm . If its base is 12 cm, what is its height?
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9 cm
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13 cm
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15 cm
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18 cm
Q.2
Circle A has an area of 12 cm . Circle B has a diameter twice that of circle A. What is the area of circle B?
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24 cm2
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36 cm2
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48 cm2
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64 cm2
Q.3
A regular octagon has a perimeter of 108 cm. How long are each of its sides?
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16.5 cm
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15.5 cm
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14.5 cm
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13.5 cm
Q.4
If the circumference of a circle is 19 cm, what is its radius (assume that π = 3.142 and round your answer to the nearest whole number)?
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2 cm
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3 cm
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4 cm
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5 cm
Q.5
The area of a square is 64 cm . What is its perimeter?
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8 cm
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16 cm
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32 cm
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48 cm
Q.6
What is the area of a circle whose radius is 10 cm (assume π = 3.142)?
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314.2 cm2
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31.42 cm2
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3,142 cm2
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3.142 cm2
Q.7
Jane is tiling her bathroom wall. The area of the wall is 8 m . Each tile has an area of 400 cm . How many tiles will Jane need?
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20
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200
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400
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4,000
Q.8
Square A has an area of 13 cm . Square B has sides twice as long as those of square A. What is the area of square B?
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26 cm2
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52 cm2
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39 cm2
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65 cm2
Q.9
If the diameter of a circle is 24 cm, what is its circumference (assume that π = 3.142 and round your answer to the nearest whole number)?
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45 cm
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55 cm
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65 cm
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75 cm
Q.10
The surface area of a cube is 54 cm . How tall is the cube?
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3 cm
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4 cm
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5 cm
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6 cm
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