Grade 6 FAST Mathematics Practice Test 2026 - Free Practice Questions and Study Guide

Area of a triangle is found by taking half of the product of its base and height. This is because a rectangle with the same base and height would have area base × height, and a triangle with the same dimensions is exactly half of that rectangle. So multiply the base by the height: 7 × 5 = 35, then take half: 35 ÷ 2 = 17.5. The area is 17.5. (Using base × height without halving would give 35, which isn’t correct for a triangle.)