38 lines
535 B
Go
38 lines
535 B
Go
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package main
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import "math"
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type Shape interface {
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Area() float64
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}
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type Rectangle struct {
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Width float64
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Height float64
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}
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type Circle struct {
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Radius float64
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}
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type Triangle struct {
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Base float64
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Height float64
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}
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func Perimeter(rectangle Rectangle) float64 {
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return 2 * (rectangle.Width + rectangle.Height)
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}
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func (r Rectangle) Area() float64 {
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return r.Height * r.Width
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}
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func (c Circle) Area() float64 {
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return math.Pi * c.Radius * c.Radius
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}
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func (t Triangle) Area() float64 {
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return 0.5 * t.Base * t.Height
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}
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