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2002 BAMO p1 angle wanted, square share side with right triangle
Source:
8/26/2019
Let
A
B
C
ABC
A
BC
be a right triangle with right angle at
B
B
B
. Let
A
C
D
E
ACDE
A
C
D
E
be a square drawn exterior to triangle
A
B
C
ABC
A
BC
. If
M
M
M
is the center of this square, find the measure of
∠
M
B
C
\angle MBC
∠
MBC
.
geometry
angle
right triangle
square