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Explore properties of shapes like triangles, rhombuses, and trapezoids, along with trigonometric functions like sine, cosine, and tangent. Learn about angles, sides, inequalities, and more in this comprehensive guide to geometry and trigonometry.
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a b 2 c 60 60 60 1 1 1 H O B A TRIANGLE UNIVERSE Rhombus EQUIANGULAR 60-60-60 EQUILATERAL 3 Sides = Parallelogram a+b>c a+c>b b+c>a a>b>c so A>B>C Trapezoid 1 Side = SCALENE 2 Sides = ISOSCELES B Triangle Inequality A C A+B+C=180 sinB=O/H cscB = H/O GM Rectangle secB = A/H Pythagorean cosB=A/H Trigonometry cotB = A/O Right Triangles Square tanB=O/A Trapezoid A,B,C are Angles a,b,c are Sides Kite
a b 2 c 60 60 60 1 1 1 H O B A TRIANGLE UNIVERSE Rhombus EQUIANGULAR 60-60-60 EQUILATERAL 3 Sides = Parallelogram a+b>c a+c>b b+c>a a>b>c so A>B>C Trapezoid 1 Side = SCALENE 2 Sides = ISOSCELES B Triangle Inequality A C A+B+C=180 sinB=O/H cscB = H/O GM Rectangle secB = A/H Pythagorean cosB=A/H Trigonometry cotB = A/O Right Triangles Square tanB=O/A Trapezoid A,B,C are Angles a,b,c are Sides Kite
B A C
Rhombus a b EQUIANGULAR 60-60-60 2 c 60 60 60 1 EQUILATERAL 3 Sides = Parallelogram a+b>c a+c>b b+c>a a>b>c so A>B>C Trapezoid 1 Side = SCALENE 2 Sides = ISOSCELES Triangle Inequality sinB=O/H cscB = H/O GM 1 1 Rectangle secB = A/H Pythagorean cosB=A/H Trigonometry cotB = A/O Right Triangles Square tanB=O/A Trapezoid H O B Kite A TRIANGLE UNIVERSE B A C A+B+C=180 A,B,C are Angles a,b,c are Sides
2 1 1 1 H O B A TRIANGLE UNIVERSE Rhombus Parallelogram Trapezoid 1 Side = SCALENE 2 Sides = ISOSCELES sinB=O/H cscB = H/O Rectangle secB = A/H Pythagorean cosB=A/H Trigonometry cotB = A/O Right Triangles Square tanB=O/A Trapezoid A,B,C are Angles a,b,c are Sides Kite