如何计算Rectangle
learn.whatIsHeading
A rectangle is a quadrilateral with four right angles. Opposite sides are equal and parallel. The square is a special rectangle where all four sides are equal.
分步指南
- 1Area = length × width
- 2Perimeter = 2 × (length + width)
- 3Diagonal = √(length² + width²)
例题解析
输入
w=8, h=5
结果
A=40, P=26, d=9.43
d=√(64+25)=√89
输入
w=12, h=9
结果
A=108, P=42, d=15
3-4-5 triple scaled ×3
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