Question

formula to calculate area of trapezium

Answer 1

by using the formula to find the area of a trapezium.

formula to find the area of a trapezium is = 1/2 × h (b1 + b2) where 'h' is the perpendicular distance between the parallel sides and b1 and b2 are the parallel sides of the trapezium respectively.

Answer 2

$a = a + b \div 2h$

hope u will understand