haleyrene3924
28.06.2020 •
Mathematics
How many pairs of intersecting line segments are shown ?
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Ответ:
16
Step-by-step explanation:
Example:
Consider A vertex. A is connected with two other vertices C and B.
Thus 3 line segments are formed. At A, two pair of intersecting lines are formed, AC & AE ; AE and AB
Each vertex form two pair of intersecting line segments. Totally , there are 8 verteces. So, 8*2 = 16 pair of intersecting lines
Ответ:
90%
Step-by-step explanation:
Metal bar: 180 g
Silver: 162 g
% silver = silver/total metal x 100
162/180 = 0.90
0.90 x 100 = 90%