
Problem 48.
Angles, Triangle. Level: High School, SAT
Prep, College 
In the figure, AB = BC, AC = AD, mÐD
= 30°, mÐBAD
= 5a,
and mÐDAC
= 2a.
Find the
measure of angle C.
.

Geometric Art: Hyperbolic Kaleidoscope of problem
48 using Mobile Apps.
Geometric Art using Mobile Apps
A mobile app or mobile application software is a computer program designed to run on smartphones and tablet computers.
Hyperbolic Kaleidoscope, Poincare Disk Model
Poincare disk model is a model of 2dimensional hyperbolic geometry in which the points of the geometry are inside the unit disk, and the straight lines consist of all segments of circles contained within that disk that are orthogonal to the boundary of the disk, plus all diameters of the disk.


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