Substitute the base and height values into the formula. (9 × 12) ÷ 2 = 54 The area of the triangle is 54 mm² Working in centimetres the base is 0∙9 cm, and the height is 1.2 cm. Substitute ...

frac{1}{2} ab \sin{C}\) To calculate the area of any triangle the lengths of two sides and the angle in between are required. It may be necessary to rearrange the formula if the area of the ...

Maths Formulas for Class 10 ... Area of a Right Triangle = A = 1/2 × Base × Height Area of an Equilateral Triangle = A = (√3)/4 × side 2 ...