If A = \(\frac{1}{2}\)h (a + b), make ‘a’ the subject of the formula
a
(2A – 2bh) ÷ b
b
(2A – bh) ÷ h
c
(2A – bh) ÷ b
d
(A – 2bh) ÷ h
e
(2A – h) ÷ bh
Explanation
Correct Option
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Ezelazaruschiemerie
5 years ago
A=1/2h(a+b)
A=1×h(a+b)/2
A=h(a+b)/2
Cross multiply
h(a+b)=2A
Divide both side by h
h(a+b)/h=2A/h
(a+b)=2A/h
a=2A/h-b
Also can be expressed as
a=(2A-b)÷h
