
Area and Perimeter of Triangles
Grade 9 · Math · 45 min
What's Included
Learning Objective
I can calculate the area and perimeter of triangles, including using the Pythagorean theorem to find missing side lengths when necessary.
Warm-Up Video
Unknown Channel · 5:00
How to Find the Area and Perimeter of a Triangle | Math with Mr. J
Practice Questions
2 questions · Short answer
Exit Ticket
Quick comprehension check
“A right triangle has a base of 8 cm and a hypotenuse of 17 cm. Find the perimeter and area of the triangle. Show all work. An isosceles triangle has two sides that are each 13 inches long and a base of 10 inches. Find the area of the triangle. (Hint: You will need to find the height). Show all work. ”
Complete Lesson Package
Get all 3 ready-to-use resources:


