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Continue to ChatEx 10.1, 3 - Chapter 10 Class 9 Herons Formula https://teachoo.com//1290/930/Ex-12.1--3---There-is-a-slide-in-the-park.-One-of-its-side/category/Finding-area-of-triangle/
Ex 10.1, 3 - Chapter 10 Class 9 Herons Formula https://teachoo.com//1290/930/Ex-12.1--3---There-is-a-slide-in-the-park.-One-of-its-side/category/Finding-area-of-triangle/