We need the area of the rectangle in column C from C3 to C11. You could use the Fill function to pull ... We need the areas of the triangles in column D from D3 to D11. The area of a circle ...

A triangle is a closed shape with three sides and three vertices. The general formula to calculate ... Area of a triangle where all 3 sides have different measures, can be calculated using Heron ...

text{Area of a triangle} = \frac{1 ... Do not round this answer yet. To calculate the angle use the inverse sin button on the calculator (\(\sin^{-1}\)).

The triangle has a base of 15 mm and an area of 30 mm². From this, find the perpendicular height of the triangle. Image caption, Use one of two calculations to work out the perpendicular height.