$\large{三角形形状}$

$\huge{h}$

演示

$\huge{a}$

b = 2.34 (slider from 0 to 6, step 0.01)
A: (0, 0)
h = 4.06 (slider from 1 to 5, step 0.01)
a = 5 (slider from 1 to 5, step 0.01)
C: A + (b, h)
B: A + (a, 0)
D: A + (b, 0)
g = Segment(C, D)
O = Midpoint(B, C)
α = 0 rad (slider from 0 to 180°, step 0.017453292519943295)
A' = Rotate(A, (-α), O)
B' = Rotate(B, (-α), O)
C' = Rotate(C, (-α), O)
t1, c', a', b' = Polygon(A', B', C')
β = Angle(C, D, A)
i = Segment(B, D)
j = PolyLine(A, B, A', C, A)
text2 = Text("ah", Midpoint[A, C] + (-1, 1), false, true)
n = 0 (slider from 0 to 4, step 1)
text1 = Text(FractionText[0.5] + "ah", O + (0.5, 2), false, true)
t2, c, a_1, b_1 = Polygon(A, B, C)

Tool: 简易坐标系
请选择原点，分别输入：x最小、最大值，y最小、最大值
Input: A, a, b, c, d
Output: B, C, O, u, v

$\huge\textcolor{}{x}$

$\huge\textcolor{}{y}$

$\Large\textcolor{}{O}$

A: (0, 0)
u = Vector(A + (a - 1, 0), A + (b + 1, 0))
v = Vector(A + (0, c - 1), A + (0, d + 1))
B: A + (b + 1, 0)
C: A + (0, d + 1)
O: A