Njoo Ufanye Hesabu

Soln ya e

Hapo kun pentagona ambayo jumla ya nyuzi ni 540,

Each angle ina nyuzi 108.

Ukichukua 108 + (2e - 86) = 180

2e + 22 = 180
2e = 180 - 22
2e = 158 gawanya kwa 2

e = 79
 
La pili: 200 x 2 ongeza 22/7 x 56 yaani 400 ongeza 176
 
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