Calculating the Area of a Triangle

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Objective

I can calculate 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 for calculating the area of a triangle? Explain each part of the formula.

2

A triangle has a base of 8 cm and a height of 5 cm. Calculate the area of the triangle.

Part 3 of 3

Exit ticket

Quick comprehension check

A triangle has a base of 9 cm and a height of 4 cm. Calculate the area of the triangle. Show all work. A triangle has a base of 11 meters and a height of 6 meters. Calculate the area of the triangle. Show all work. Nice!

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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