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90° | 30° | 60°
________________
a | 1/2a | 1/2a√3
90 | 45 | 45
___________
b√2 | b | b
a) Obw = b√2 + b + a + 1/2a√3
1/2a = b = 4
a = 8
1/2a√3 = 4√3
Obw = 4√2 + 4 + 8 + 4√3 = 12 + 4√2 + 4√3
b)
Obw = b + 1/2a + 6 + b√2
a = 6 1/2a = 3
a = b = 6
Obw = 6 + 3 + 6 + 6√2 = 15 + 6√2
c) Obw = a + b√2 + 1/2a√3 - b
a = 10
1/2a = 5 = b
1/2a√3 = 5√3 ( wysokość tych dwóch)
Obw = 10 + 5√2 + 5√3 - 5 = 5 + 5√2 + 5√3
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90° | 30° | 60°
________________
a | 1/2a | 1/2a√3
90 | 45 | 45
___________
b√2 | b | b
a) Obw = b√2 + b + a + 1/2a√3
1/2a = b = 4
a = 8
1/2a√3 = 4√3
Obw = 4√2 + 4 + 8 + 4√3 = 12 + 4√2 + 4√3
b)
Obw = b + 1/2a + 6 + b√2
a = 6 1/2a = 3
a = b = 6
Obw = 6 + 3 + 6 + 6√2 = 15 + 6√2
c) Obw = a + b√2 + 1/2a√3 - b
a = 10
1/2a = 5 = b
1/2a√3 = 5√3 ( wysokość tych dwóch)
Obw = 10 + 5√2 + 5√3 - 5 = 5 + 5√2 + 5√3