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16.01.2020 •
Mathematics
What is the answer of 240÷8-[32-(140-68)÷9] step by step
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Ответ:
Ответ:
240÷8-[32-(140-68)÷9]
240÷8-[32-72÷9]
240÷8-[32-8]
240÷8-[24]
240÷192
1.25
Ответ:
Solution-
Reflection Symmetry-
Line symmetry is also called as the reflection symmetry. If, at least one line that divides a figure into two halves such that one-half is the mirror image of the other half, exists, then the figure is said to be in reflection symmetry.
Analyzing all the 4 figures, it can be deduced that only 1st and 2nd figures have one symmetry line XX, as shown in the attachments.
3rd and 4th figures do not have any axisymmetric lines, so they are not in reflection symmetry.