# Area of Triangles & Parallelograms

Calculate the area of parallelograms and triangles using formulae (A = b × h for parallelograms, A = ½ × b × h for triangles)

Builds on: Multiplying fractions (age 10+) (soft, https://ai.page/c/multiplying-fractions-age-10/en.md), Estimating answers (age 9+) (hard, https://ai.page/c/estimating-answers-age-9/en.md), Using Simple Formulae (soft, https://ai.page/c/using-simple-formulae/en.md), Classifying shapes by properties (soft, https://ai.page/c/classifying-shapes-by-properties/en.md)

Concept id: area-of-triangles-and-parallelograms. Subject: maths. Licence: CC BY-SA 4.0.

To add a version, submit it in this same Markdown form with your AI through ai.page's connector (submit_version). Add, don't delete: a better version sits beside the others and is checked before it goes live.