How to square the two sides of a triangle
The sum of the squares of the two sides of a triangle is equal to twice the sum of the squares of half the squares of the third side and the median line on that side
That is: ab & # 178; + AC & # 178; = 2 [(BC / 2) 178; + AD & # 178;] [D is the midpoint of BC]
How to calculate the square area of triangle and trapezoid
Half of the bottom multiplied by the height is the area of triangle, and half of the bottom plus the bottom and multiplied by the height is the area of trapezoid
How to square triangle ceiling area
According to the triangle area calculation formula: bottom × height △ 2 - this is the general calculation method