Question

if a=1/2(a+b)h,express a in terms of A,b and h. pls solve with step by step ​

Answer 1

Answer:

$a = \frac {2A - bh}{h}$

Explanation:

Given the following mathematical expression;

A = ½(a + b)h

To make a the subject of formula (express a in terms of A, b and h);

First of all, we would cross-multiply;

2A = (a + b)h

Opening the bracket, we have;

2A = ah + bh

Rearranging the mathematical expression, we have;

ah = 2A - bh

$a = \frac {2A - bh}{h}$