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25 Feb 2022, 03:15
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C
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If a rectangular piece of cloth measuring 20 inches by 10 inches is cut into exactly two squares, each of which are then cut into exactly two triangles, what is the area of one of the triangles, in square inches?
A. 20
B. 40
C. 50
D. 60
E. 80
A. 20
B. 40
C. 50
D. 60
E. 80
09 Mar 2022, 09:53
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Bookmarks
Bunuel
If a rectangular piece of cloth measuring 20 inches by 10 inches is cut into exactly two squares, each of which are then cut into exactly two triangles, what is the area of one of the triangles, in square inches?
A. 20
B. 40
C. 50
D. 60
E. 80
A. 20
B. 40
C. 50
D. 60
E. 80
Attachment:
square .png [ 2.35 KiB | Viewed 1622 times ]
Each square will have sides as \(10\)
Each \(\Delta\) will have legs as \(10\) and \(10 \),Hence area \(= \frac{1}{2}*10*10 = 50 \)
Hope the post helps.
09 Mar 2022, 10:04
Kudos
Bookmarks
Bunuel
If a rectangular piece of cloth measuring 20 inches by 10 inches is cut into exactly two squares, each of which are then cut into exactly two triangles, what is the area of one of the triangles, in square inches?
A. 20
B. 40
C. 50
D. 60
E. 80
\(20*10 = 2a^2\)A. 20
B. 40
C. 50
D. 60
E. 80
So, \(a = 10\)
Thus, area of each triangle will be 1/2*10*10 = 50, Answer must be (C)
