SCB2 oe 26 8 4 M1 for (2)2 22 (= 36) – A1 for (CD =) 6 M1 (dep on M1) for × 4 × × 2 × 2 × 2 × 2) × 4 ‘6’ – ‘6’ – – (‘6’ – C1 for area of 8 from fully correct working 27 32 : 45 5 M1 for a correct expression for surface area of the cylinder + or surface area of the (=2×π×3² 6πh) sphere (=4×π×6²) M1 (dep) for area of and × surface area of equating ‘surface cylinder’ ‘2 + = 2 sphere’, 2×π×3² 6πh ×4×π×6² M1 (dep) for a method to isolate h M1 for oe and oe π×32×‘45’ ×π×63
SCB2 oe 26 8 4 M1 for (2)2 – 22 (= 36) A1 for (CD =) 6 M1 (dep on M1) for ‘6’ × 4 – × ‘6’ × 2 – × 2 × 2 – × (‘6’ – 2) × 4 C1 for area of 8 from fully correct working 27 32 : 45 5 M1 for a correct expression for surface area of the cylinder (=2×π×3² + 6πh) or surface area of the sphere (=4×π×6²) M1 (dep) for equating ‘surface area of cylinder’ and ‘2 × surface area of sphere’, 2×π×3² + 6πh = 2 ×4×π×6² M1 (dep) for a method to isolate h M1 for π×32×‘45’ oe and ×π×63 oe