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Geometry problems 8 (70..79) |
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problems 60..69
problems 80..89
70.
Calculate radius R.

71.
Calculate the colored area.

72.
Calculate radius r.

73.
Calculate the colored area.

74.
Calculate radius R.

75.
Calculate radius R of the quarter circle.

76.
Calculate the ratio r/R.

77.
Calculate the colored area.

78.
Calculate the radius R/r.(Golden ratio).

79.
Calculate the colored area.


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