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If each of the small squares in the figure above has area 1,
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01 Aug 2018, 10:33
01 Aug 2018, 10:33
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77% (01:00) correct
22% (00:38) wrong based on 18 sessions
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If each of the small squares in the figure above has area 1, what is the area of the shaded region?
A. 50
B. 55
C. 59
D. 60
E. 61
Re: If each of the small squares in the figure above has area 1,
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11 Aug 2018, 13:16
11 Aug 2018, 13:16
1
For any questions like this one, it is easiest to group the numbers together.
In other words, instead of doing the summation: 10+9+8+7+...+1
Do the summation: (10+1)+(9+2)+...+(6+5)=11+11+11+11+11=11*5=55
B
In other words, instead of doing the summation: 10+9+8+7+...+1
Do the summation: (10+1)+(9+2)+...+(6+5)=11+11+11+11+11=11*5=55
B
Re: If each of the small squares in the figure above has area 1,
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16 Jan 2019, 18:49
16 Jan 2019, 18:49
1
10/2 * 11 * 1 = 55
