Equations, SM-Bank 044 Find the value of \(A\) in the formula \(A=\dfrac{h}{2}(a+b)\) if \(h=8\), \(a=7\) and \(b=3\). (2 marks) Show Answers Only \(A=40\) Show Worked Solution \(A\) \(=\dfrac{h}{2}(a+b)\) \(A\) \(=\dfrac{8}{2}(7+3)\) \(A\) \(=4\times 10\) \(A\) \(=40\)