Trapezoid Area Calculator

Online Tutoring Is The Easiest, Most Cost-Effective Way For Students To Get The Help They Need Whenever They Need It.

Trapezoid area Calculator is used to calculate total space inside the trapezoid called the area of the trapezoid. A trapezoid is any quadrilateral figure that has one pair of parallel side, and has 2 bases and a height.

Area = ½ (a+b)h, where a and b are bases and h is height.

Example 1: Calculation of the area of a trapezoid where Bases are a= 7 cm and b = 3 cm, and height = 9 cm

For the given question

Area of trapezoid = ½ (base1 + base2) height =  ½ (a + b ) h

= ½ x (7 cm + 3 cm) 9 cm [ replacing the values of a, b and h ]

= ½ (10 cm) 9 cm = 90 cm2

Area of trapezoid = 45 cm2

Example 2: Calculation of the area of a isosceles trapezoid where Bases are a= 12cm and b = 4cm, and side = 5cm

For the given question

Area of trapezoid = ½ ( a + b ) h

Since its isosceles trapezoid side1 = side2 = s

Use Pythagoras theorem to find side s ;

h2= s2 - (a-b /2)2;

h = √25 - (12-4/ 2) = √21

= ½ x (12+4) √21

= ½ (16 cm) √21 cm  = 8√21 cm2