Consider right triangle ACB and right triangle ECD with: There is ∠A = ∠E = 90o ∠C common => Triangle ACB ∾ triangle ECD (gg) => AC/EC = AB/ED => ED = AB.EC/AC = 15cm So ED = 15cm Formula for ...

Area of Triangle Formula: In general, "area" refers to the region inside the boundary of a flat object or figure and is measured in square units, with the standard unit being square meters (m²).

Mathematics is a foundational subject that can be both challenging and rewarding. Success in this field, especially for the CBSE Class 10 board exams, hinges on a strong command of its core principles ...

You'll be using Sketch 1 of this file which has three different types of triangles - scalene, isosceles, equilateral. Each triangle type has a different colour (pink for scalene, red for equilateral, ...

Discover the different types of triangles and find out the difference between an equilateral, scalene, isosceles and right-angled triangle in this KS2 guide.

Henry Dudeney, a self-taught English mathematician and puzzle columnist, asked his readers to dissect an equilateral triangle into the smallest number of pieces that could be rearranged into a square.