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Grade 9 Math: Intro to Geometry Pythagorean Theorem
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True or false? The following equation is the formula for a Pythagorean Theorem: $$a^3+b^3=c^3$$
True
False
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What is the one condition of a Pythagorean theorem?
It can only be used on a isosceles triangle
It can only be used on a right-angled triangle
It can only be used on a scalene triangle
It can only be used on a equilateral triangle
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We have a triangle with the following measurements: \(a=3\) and \(b=9\). What is the value of the hypotenuse?
$$\sqrt{45}$$
$$\sqrt{60}$$
$$\sqrt{30}$$
$$\sqrt{90}$$
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Mike could drive north to get to Johns house or east to get to Dave's house. It is 16km from Mike's house to John's house and a straight-line distance of 20 km from Johns house to her Dave's house. How far is Mike's from her Dave's house?
12km
18km
22km
24km
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The hypotenuse of an isosceles right triangle is 128cm. What is the length of the other sides of the triangle?
24
18
12
8
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Grade 9 Math Playlist
36 Videos
03:58:53
167 Questions
0 Notes
Rational Numbers, Exponents, and Polynomials
Introduction to Variables
Algebraic Expressions (Coefficients, Constants, Variables, Operators)
Linear Relations and Equations
Intro to Exponents
Product Rule for Exponents
Quotient Rule for Exponents
Power of a Power Rule
Rational Exponents
Exponents of 0 and 1, Negative Exponents, and Negative Bases
Terms and Collecting Like Terms
Polynomials (Monomials, Binomials, Trinomials, Degrees of Terms and Degrees of Polynomials)
Distributive Property
Intro to Factoring
Solving Simple Equations
Solving Multistep Linear Equations
Independent Variables and Dependent Variables
Slope-Intercept Form, Y-intercept, and X-intercept
Point-slope Form, Linear Equations
Using 2 points of a Linear Equation in Slope-intercept Form
Parallel Lines and Perpendicular Lines
Direct Variation
First Differences
Intro to Lines
Intro to Geometry
Polygons
Different Types of Triangles
Interior and Exterior Angles
Quadrilaterals and Congruence
Midpoint, Midsegment, and Medians of Triangles
Midpoints and Diagonals
Pythagorean Theorem
Area of a Triangle
Area of a Composite
Prisms
Pyramids
Surface Area of a Cone
Volume of a Cone
Surface Area of a Sphere