Expand index (42 more) » « Shrink index Acacia (fraternity)Īcacia (Ακακία) is a social fraternity founded in 1904 at the University of Michigan in Ann Arbor, Michigan. , Latin letters used in mathematics, Line segment, List of geometry topics, List of Greek and Latin roots in English/C, List of interactive geometry software, List of numbers, List of theorems, List of triangle inequalities, List of triangle topics, Medial triangle, Median (geometry), Midpoint, Midpoint polygon, Musselman's theorem, Nine-point center, Nine-point circle, Nine-point conic, Nine-point hyperbola, Olry Terquem, Orthocentric system, Orthocentroidal circle, Orthodiagonal quadrilateral, Pedal triangle, Perpendicular, Polar circle (geometry), Pythagorean theorem, Quadrilateral, Right triangle, Similarity (geometry), Simson line, Solution of triangles, Tangential quadrilateral, Tangential triangle, There is No Natural Religion, Triangle, Triangle center, Triangular prism, Trigonometry of a tetrahedron, Trilinear coordinates, Trilinear polarity, Van Lamoen circle, Viviani's theorem. ĩ2 relations: Acacia (fraternity), Acute and obtuse triangles, Altitude (disambiguation), Angle bisector theorem, Area, Barycentric coordinate system, Base (geometry), Cathetus, Central line (geometry), Centre (geometry), Centroid, Cevian, Circumconic and inconic, Circumscribed circle, Collinearity, Compass-and-straightedge construction, Complete quadrangle, Concurrent lines, Conway triangle notation, Cubic plane curve, Cyclic quadrilateral, De Longchamps point, Dissection into orthoschemes, Droz-Farny line theorem, Encyclopedia of Triangle Centers, Equilateral triangle, Equivariant map, Euler line, Exeter point, Extended side, Fagnano's problem, Fuhrmann circle, Geometric mean theorem, Giovanni Fagnano, Harmonic mean, Height, Height (disambiguation), Heptagonal triangle, Heron's formula, Heronian triangle, Hilbert space, Holditch's theorem, Hyperbolic sector, Incenter, Incircle and excircles of a triangle, Integer triangle, Isogonal conjugate, Isosceles triangle, Johnson circles, Kenneth Wayne Bushnell. Stadler has a geometry math set that comes with a mini ruler, compass, protractor, and eraser in a nice travel-sized pack that is perfect for students on the go and for keeping everything organized….did I mention it’s only $7.99 on Amazon?! This is the same set I use for every construction video in this post.In geometry, an altitude of a triangle is a line segment through a vertex and perpendicular to (i.e., forming a right angle with) a line containing the base (the side opposite the vertex). Looking to get the best construction tools? Any compass and straight-edge will do the trick, but personally, I prefer to use my favorite mini math toolbox from Staedler. Whatever reason you have to learn about constructions I hope this helps! Stay positive and happy calculating! Best Geometry Tools!

If you’re looking for more constructions out there, be sure to check out the MathSux Constructions Playlist on YouTube for even more tutorials! I hope you find this video helpful and hope it motivates you to learn even more about constructions (or you know get through your homework/pass that test).

Check out the video above to see how this works step by step.

The point at which they meet is the orthocenter. In order to find the orthocenter using a compass, all we need to do is find the altitude of each vertex.

Construction of an altitude geometry