
Triangles and Coordinate Grid
Presentation
•
Mathematics
•
10th Grade
•
Hard
Joseph Anderson
FREE Resource
13 Slides • 22 Questions
1
Draw
The following plexers are of common sayings. Study the pictures to determine at least three plexers.
2
3
Essential Questions
● How can you use coordinate geometry to classify triangles and solve real-world problems?
4
5
6
Classifying Right Triangles
If c2 = a2 + b2 --> right triangle
If c2 < a2 + b2 --> acute triangle
If c2 > a2 + b2 --> obtuse triangle
7
Triangle Inequalities
8
Finding Perimeter of a Triangle
Side 1 + Side 2 + Side 3 = P
a + b + c = P
OR
P = Side 1 + Side 2 + Side 3
P = a + b + c
9
A = 1/2 (5)(12)
A = 1/2 (60)
(you may multiply in the order you prefer)
A = 30 square units
30 units2
height
10
External Angle Theorem
The exterior (supplement) to one angle is the sum of the other two interior angles
11
Reminder!!!
DE = 1/2(AB)
CE = BE
AD = DC
12
13
Multiple Choice
State if the three side lengths form an acute, obtuse, or right triangle.
5ft, 8ft, 10ft
Acute
Obtuse
Right
14
Draw
Is EFG a right triangle given E(0,1), F(2,3) and G(4,-1)?
1) Graph and label each point.
2) Connect the points to make a triangle.
3) Write the length of each side of the triangle
4) Classify the triangle as acute, obtuse, or right.
5) Write the type of triangle in the top LEFT corner.
NOTE: EVERYONE's work will be displayed.
15
Draw
Given the coordinates, classify ΔJKL by its sides.
J(−3, 2), K(2, 6), L(8, −1)
1) Graph and label each point.
2) Connect the points to make a triangle.
3) Write the length of each side of the triangle
4) Classify the triangle as acute, obtuse, or right.
5) Write the type of triangle in the top LEFT corner.
NOTE: Everyone's work will be displayed
16
Draw
The perimeter of the triangle is 10x + 20.
Find the length of the missing side.
17
18
Multiple Choice
The Pythagorean Theorem ONLY works on which triangle?
obtuse
scalene
isosceles
right
19
Multiple Choice
What side(s) will always be the longest on a right triangle?
The Hypotenuse
Leg A
Leg B
The Right Angle
20
Multiple Choice
What is the perimeter (in units) of the triangle formed by the points (-3,1), (-3,5), and (4,1)?
65
8.06
14
19.06
21
Multiple Choice
What are the lengths of the triangle's sides?
6, 7, & 8
5, 5, & √7
5, 5, & √10
3, 4, & 5
22
Multiple Choice
What is the perimeter of the triangle? (Round to the nearest tenth)
12
about 13.2
21
about 12.6
23
Multiple Choice
What is the perimeter of the triangle? (Round to the nearest tenth)
12
about 13.2
21
about 12.6
24
Multiple Choice
25
Multiple Choice
26
Multiple Choice
Calculate the length for each side of the triangle.
AB = 3.6, BC = 4.5, AC = 4.1
AB = 4.1, BC = 5.6, AC = 7.5
AB = 4.5, BC = 3.6, AC = 4.1
AB = 4.1, BC = 3.6, AC = 4.5
27
Multiple Choice
Given that A(-2,3), B(4,1) and C(2,-4) are vertices of a triangle, find the perimeter of the triangle.
20.789
19.772
23.9
13.456
28
Multiple Choice
If a triangle with vertices of (-3,0), (0,3), (3,0), classify it by its sides.
Isosceles
Scalene
Equilateral
Obtuse
29
Multiple Choice
30
Multiple Choice
31
Multiple Choice
32
Multiple Choice
33
Multiple Choice
34
Multiple Choice
35
Hump Day! Wednesday
December 4, 2024
The following plexers are of common sayings. Study the pictures to determine at least three plexers.
Show answer
Auto Play
Slide 1 / 35
DRAW
Similar Resources on Wayground
26 questions
2.2 Test Review - Exponents and Radicals
Presentation
•
10th Grade
25 questions
Graphing linear functions
Presentation
•
9th Grade
30 questions
7.1 Stoichiometry Pt.2 Practice
Presentation
•
10th Grade
26 questions
Rigid Transformations
Presentation
•
10th Grade
30 questions
Test Review Part 1: Pyth Thm and Foundations of Geometry
Presentation
•
9th - 10th Grade
29 questions
Distributive Property and Combine Like terms
Presentation
•
9th - 10th Grade
33 questions
Graphing Linear Equations
Presentation
•
10th Grade
23 questions
Trigonometry
Presentation
•
10th Grade
Popular Resources on Wayground
24 questions
PBIS-HGMS Day 10
Quiz
•
6th - 8th Grade
10 questions
HCS SCI 03 Summer School Review 3
Quiz
•
3rd Grade
11 questions
Home Scope
Quiz
•
7th - 8th Grade
15 questions
HCS SCI 05 Summer School Assessment 3 Review
Quiz
•
5th Grade
35 questions
Lufkin Road Middle School Student Handbook & Policies Assessment
Quiz
•
7th Grade
18 questions
Geo 11.3 Area of Circles and Sectors
Quiz
•
9th - 11th Grade