Geometry

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In order of increasing difficulty (approximately).

Everything

36 1201 1057 1180 2383 5 1062 2368 1366 1424 1502 2192 1017 1003 1582 2352 922 2055 1203 2178 1162 1144 2353 2326 1813 1518 1091 65 2302 2275 2281 66 2263 2332 1364 1 2182 2177 1812 1795 1015 1082 1050 1088 1089 1134 2208 2101 56 63 69 263 294 348 1073 577 682 471 855 885 982 1019 1038 1136 1452 531 669 684 570 122 201 247 608 335 623 406 635 424 486 459 652 516 532 595 609 667 2066 745 783 789 835 2047 988 1009 1007 2092 724 1070 731 2131 2133 2139 2130 2137 2142 2132 2141 2403 1191 2155 1195 2163 1228 2171 2184 2185 92 2195 1368 1954 2360 2226 2230 2232 1585 1670 2276 1785 2305 2308 2303 2333 1887 2348 1951 2339 1971 2042 2354 1137 1602 1215 760 884 925 927 1405 1426 1427 1464 1484 1504 1507 1520 1538 1584 1624 1648 1668 1690 1748 1750 1870 1929 1968 1986 1988 2029 2033 2043 2085 2086 2093 2103 2136 2156 2162 2179 2186 2194 2197 2198 2231 983 986 2310 2327 108 273 369 384 426 566 791 1837 477 2320 1908 1390 1415 2203 2221 1628 151 463 64 2235 1692 1609 1610 1630 1631 1766 1713 2271 152 1770 79 1786 1788 1791 133 508 123 180 191 1838 224 257 250 374 296 358 658 311 690 2335 372 386 629 387 1937 410 1936 1859 100 431 446 447 1909 492 529 527 535 1932 557 584 434 355 765 275 776 792 2015 840 821 824 748 837 2049 750 813 2060 1992 2074 967 968 1559 874 1411 910 908 1098 736 2125 945 2274 946 1392 965 1332 356 2096 12 1173 1467 1468 872 528 2114 2165 464 1250 2115 2173 2120 248 829 554 207 729 482 290 226 568 228 240 242 575 320 496 435 253 706 333 260 271 436 287 662 587 243 830 303 93 600 60 616 227 619 331 451 346 345 632 91 378 360 94 634 95 209 647 393 646 468 722 705 721 403 723 728 421 422 808 439 753 815 169 678 663 768 199 483 615 499 514 540 512 782 770 779 214 693 118 155 139 553 185 796 200

30 60 90 triangles

1366 789

AM-GM

2096

Angle bisector theorem

684 609 2348

Area

2368 66 63 855 486 426 64 79

Assign variables

595 731 2320 792

Assign variables write equations

577 855 988 731 2130 92 2195 2320 535

Basic

2066

Bouncing

260

Circles

791 508 690 776 840

Circumcircles

690

Clever

570

Complex numbers

1937

Congruent triangles

609 436

Construct the diagram

792

Coordinates

514

Coordinatize

63 789 64 451

Cutting

2360

Cyclic quadrilaterals

690 540

D = RT

345

Draw horizontal and vertical lines

63 2354 64

Drawing the diagram

835

Ellipses

12 60

Equal tangents

2403 566

Equilateral triangles

2130

Extend a line

2354

Floor & ceiling

1838

Folding

736

GCD/LCM

69

Geometric optimization

5 1837

Geometric probability

652 1411 945 464 435

Geometric series

835

Graph theory

722 723

Graphing

1838

Heron's Formula

1 2348

Incircles

566 372

Inequality constraints

584

Lattice points

69

Law of Cosines

434 540

Law of Sines

434

Length chasing

595 792

Locus

459

Logs

532 1838

Mass points

684

Notation

835

Organize the count by the right variable

1908

Overlapping area

66 335

Pentagons

56

Physical

2360 477 629 736 568 260 345 468

Point-line distance

514

Power of a point

840

Projection

2383

Ptolemy

840

Pythagoras

2130

Reflection

1837

Right angles

792

Rolling

568

Roots of unity

632

Scaling

2130 658

Scan the diagram

609

Shoelace

2303

Sigma notation

835

Similar triangles

36 2101 577 608 595 609 835 2348 2354 2320 658 792 840 813 908 60 540

Skews

12

Slope

60

Stewart's Theorem

840

Tangency

65 635 2403 508 2335 776 60

Transformations

60

Triangle Area Formulas

690 540

Triangle inequality

435

Triangles

1366 669 684 789 566 690 372 840 451

Trig

745 535

Vectors

2383

Not Classified Yet

1201 1057 1180 1062 1424 1502 2192 1017 1003 1582 2352 922 2055 1203 2178 1162 1144 2353 2326 1813 1518 1091 2302 2275 2281 2263 2332 1364 2182 2177 1812 1795 1015 1082 1050 1088 1089 1134 2208 263 294 348 1073 682 471 885 982 1019 1038 1136 1452 531 122 201 247 623 406 424 516 667 783 2047 1009 1007 2092 724 1070 2131 2133 2139 2137 2142 2132 2141 1191 2155 1195 2163 1228 2171 2184 2185 1368 1954 2226 2230 2232 1585 1670 2276 1785 2305 2308 2333 1887 1951 2339 1971 2042 1137 1602 1215 760 884 925 927 1405 1426 1427 1464 1484 1504 1507 1520 1538 1584 1624 1648 1668 1690 1748 1750 1870 1929 1968 1986 1988 2029 2033 2043 2085 2086 2093 2103 2136 2156 2162 2179 2186 2194 2197 2198 2231 983 986 2310 2327 108 273 369 384 1390 1415 2203 2221 1628 151 463 2235 1692 1609 1610 1630 1631 1766 1713 2271 152 1770 1786 1788 1791 133 123 180 191 224 257 250 374 296 358 311 386 387 410 1936 1859 100 431 446 447 1909 492 529 527 1932 557 355 765 275 2015 821 824 748 837 2049 750 2060 1992 2074 967 968 1559 874 910 1098 2125 2274 946 1392 965 1332 356 1173 1467 1468 872 528 2114 2165 1250 2115 2173 2120 248 829 554 207 729 482 290 226 228 240 242 575 320 496 253 706 333 271 287 662 587 243 830 303 93 600 616 227 619 331 346 91 378 360 94 634 95 209 647 393 646 705 721 403 728 421 422 808 439 753 815 169 678 663 768 199 483 615 499 512 782 770 779 214 693 118 155 139 553 185 796 200

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