Calculating the Area of a Triangle

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Objective

I can find the area of a triangle using the formula A = ½ × base × height.

Part 1 of 3

Warm-up video

Unknown Channel · 5:00

We don't generate video — this one is by Unknown Channel on YouTube. The practice questions and exit ticket below were drafted by AI for this objective, and every question is editable in the teacher guide.

Part 2 of 3

Practice

7 questions

1

What is the formula used to calculate the area of a triangle? Please write it down.

2

If a triangle has a base of 8 inches and a height of 5 inches, what is its area? Show your calculations.

Part 3 of 3

Exit ticket

Quick comprehension check

A triangle has a base of 9 inches and a height of 6 inches. What is the area of the triangle? Show your calculations. A triangular park has a base of 15 feet and a height of 8 feet. Calculate the area of the park. Show your work.

Sample answer included in the free materials

Get the materials

Teacher guide, student handout, and slides — free, in Google Docs format

  • Teacher Guide

    Complete lesson plan with answer keys and alternate activities

  • Student Handout

    Printable worksheet

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