Square root + Heron's formula - examples

1. Triangle ABC Calculate the sides of triangle ABC with area 1404 cm2 and if a: b: c = 12:7:18
2. Triangle SSS Calculate perimeter and area of ​​a triangle ABC, if a=40, b=36 and c=36.
3. Circles 2 Calculate the area bounded by the circumscribed and inscribed circle in triangle with sides 12 cm, 14 cm, 18 cm.
4. Triangle The triangle has known all three sides: a=5.5 m, b=5.3 m, c= 7.8 m. Calculate area of ​this triangle.
5. Triangle Determine whether a triangle can be formed with the given side lengths. If so, use Heron's formula to find the area of the triangle. a = 158 b = 185 c = 201
6. One trapezium One trapezium has AB=24M, BC=36M, CD=80M, DA=80M long sides. Find the area.

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