Large collection of free worksheets for Geometry. Useful for teachers of Maths/Mathematics.*1*REVIEW OF ALGEBRA*2*Review of equations*4*Simplifying square roots*4*Adding and subtracting square roots*4*Multiplying square roots*4*Dividing square roots*1*PARALLEL LINES AND THE COORDINATE PLANE*2*Parallel lines and transversals*4*Proving lines parallel*4*Points in the coordinate plane*4*The Midpoint Formula*4*The Distance Formula*4*Parallel lines in the coordinate plane*1*PROPERTIES OF TRIANGLES*2*Angle bisectors*4*Medians*4*Centroid*4*The Triangle Inequality Theorem*4*Inequalities in one triangle*1*SIMILARITY*2*Solving proportions*4*Similar polygons*4*Using similar polygons*4*Similar triangles*4*Similar right triangles*4*Proportional parts in triangles and parallel lines*1*TRIGONOMETRY*2*Trig. ratios*4*Inverse trig. ratios*4*Solving right triangles*4*Multi-step trig. problems*4*Trigonometry and area*1*CIRCLES*2*Arcs and central angles*4*Arcs and chords*4*Circumference and area*4*Inscribed angles*4*Tangents to circles*4*Secant angles*4*Secant-tangent and tangent-tangent angles*4*Segment measures*4*Equations of circles*1*CONSTRUCTIONS*2*Line segments*4*Perpendicular segments*4*Angles*4*Triangles*4*Medians of triangles*4*Altitudes of triangles*4*Angle bisectors*4*Circles*1*BASICS OF GEOMETRY*2*Line segments and their measures (inches)*4*Line segments and their measures (cm)*4*Angles and their measures*4*Classifying angles*4*Naming angles*4*The Angle Addition Postulate*4*Angle pair relationships*4*Understanding geometric diagrams and notation*1*CONGRUENT TRIANGLES*2*Classifying triangles*4*Triangle angle sum*4*The Exterior Angle Theorem*4*Triangles and congruence*4*SSS and SAS congruence*4*ASA and AAS congruence*4*SSS, SAS, ASA, and AAS congruences combined*4*Right triangle congruence*4*Isosceles and equilateral triangles*1*QUADRILATERALS AND POLYGONS*2*Classifying quadrilaterals*4*Angles in quadrilaterals*4*Properties of parallelograms*4*Properties of trapezoids*4*Areas of triangles and quadrilaterals*4*Introduction to polygons*4*Polygons and angles*4*Areas of regular polygons*1*RIGHT TRIANGLES*2*The Pythagorean Theorem and its Converse*4*Multi-step Pythagorean Theorem problems*4*Special right triangles*4*Multi-step special right triangle problems*1*SURFACE AREA AND VOLUME*2*Identifying solid figures*4*Volume of prisms and cylinders*4*Surface area of prisms and cylinders*4*Volume of pyramids and cones*4*Surface area of pyramids and cones*4*More on nets of solids*4*Spheres*4*Similar solids*1*TRANSFORMATIONS*2*Translations*4*Rotations*4*Reflections*4*All transformations combined