Geometry Problem 1288


Elements: Triangle, 30-50-100 Degrees, Area, Inradius, Metric Relations, Measurement.

In a triangle ABC, angle B = 100 degrees, angle C = 50 degrees, BC = a, AC = b, and AB = c. Prove that: (1) Area of triangle ABC = bc/4; (2) Inradius ; (3) .
This entry contributed by Sumith Peiris, Moratuwa, Sri Lanka.
 

Geometry Problem 1288: Triangle, 30-50-100 Degrees, Area, Inradius, Metric Relations, Measurement


See also:
Geometry Problems
1281-1290
Visual Index
Open Problems
All Problems
Triangle
Triangle Area
30 degrees
Angles
Inradius


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