ACT Math: Critical Concepts for a 36-Geometry, Trigonometry, Sequences and Comp Num (Part 4 of 4)

Welcome to a thorough covering the core concepts you need to ace the math portion of the ACT! In this video, part 4 of 4, we cover the critical pieces of some of the more advanced math topics on the ACT including geometry, trigonometry, sequences, and complex numbers. Watch carefully to understand all of the critical concepts in this category!

00:00 Introduction
00:22 Volume Formulas
01:51 Area Formulas
03:20 Pythagorean’s Theorem
05:04 Triangle Sum Theorem
05:45 Special Right Triangles
06:58 Polygons
10:11 Triangle Congruence and Similarity
11:34 Trigonometry
13:40 Area of a Triangle Using Trigonometry
14:37 Signs of Trigonometric Functions
16:53 Law of Sines
18:38 Law of Cosines
20:56 Trigonometric Identities
21:38 Trigonometric Graphs
26:14 Angles
29:59 Circle Terms
31:11 Circle Area and Perimeter
31:58 Arc Measure
33:00 Circle Equation
35:03 Ellipse Equation
38:43 Sequences
43:11 Complex Numbers

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Music Videos for math concepts:

[AeKay]

Diagonals: 9:45
Area of Triangle Using Trig: 13:50
Law of Sines: 17:18
Law of Cosines: 18:45
Trig Identities: 21:00
Trig Graphs: 23:15
Ellipses: 35:13
Arithmetic Sequence: 39:24
Geometric Sequence: 40:05
Arithmetic Sequence Sum: 40:45
Geometric Sequence Sum: 41:25
Recursive Formula: 42:06

[levtuve]

tysm for these videos, my test is in less than 4 hours, and you make things so much easier to understand 😭 hoping to do good

[ha]

Intersecting chords of circles? Tangent and chord of a circle combo? 2 tangents to a circle?

[sampatel]

can you do some practice for the digital test on the 9th pls?

[derrickchen]

When is your March SAT score reveal coming?