$A = \frac{b \times h}{2}$. Taking $A = 10$, rounded to the nearest whole number, and $h = 4$, also rounded to the nearest whole number.
(main)[3]
Calculate the upper bound for the value of $b$.
Worked solution & mark scheme
This 3-mark question has a full step-by-step worked solution and mark scheme. One marking point: “Rearranged relation: $b=\frac{2A}{h}$” …
- Full mark scheme, point by point
- Step-by-step worked solution
- Write your answer & get it marked instantly by AI