Show Obtuse Angle

a

b

Hint

Reset

50°

60°

1. Which angle is bigger?

2. Identify an obtuse angle in the diagram.

A = (4, 2)
B': (x(A) + 3, y(A))
c = Circle(A, B')
C' = Rotate(B', 50°, A)
D = Rotate(C', 60°, A)
f = Segment(A, B')
g = Segment(A, C')
h = Segment(A, D)
a = false
E = (2, 8.5)
F = (5.5, 7)
G: (x(E) + 3, y(E))
H: (x(F) + 5, y(F))
d = Circle(E, G)
e = Circle(F, H)
G' = Rotate(G, 45°, E)
H' = Rotate(H, 45°, F)
i = Segment(G, E)
j = Segment(G', E)
k = Segment(H, F)
l = Segment(H', F)
m = Ray(A, B')
B = Mirror(A, B')
n = Segment(A, B)
p = Line(D, n)
q = Ray(A, C')
C = Intersect(p, q)
r = Segment(A, C)
I = Point(n)
s = Circle(A, I)
J = Intersect(s, r, 1)
K = Intersect(s, h, 1)
t = CircleArc(A, I, J)
c_1 = CircleArc(A, J, K)

Tool: Angle
Angle[ <Point> ]
Input: L_1
Output: α, A, U_1, f, j

Move

Turn

p = Circle(L_1, 10)
U_1 = Point(p)
j = Segment(U_1, L_1)
A = Rotate(U_1, 50°, L_1)
α = Angle(U_1, L_1, A)
f = Segment(L_1, A)