Ab means a multiplied by b. There are many geometric formulas and they relate height width length or radius etc to perimeter area surface area or volume etc. If the base b and the corresponding height h are known we use the formula.
If the base b and the corresponding height h are known we use the formula.
Area of a Circle. In a Geometric Sequence each term is found by multiplying the previous term by a constant. For example the Pythagoras Theorem proved that a2 b2 c2 for a right-angled triangle where a and b are the sides of the right-angled triangle and c is the hypotenuse. If two sides and the angle between them are known we use one of the formulas depending on which side and which angle are known.