Question

Find the total surface area of these to 1 decimal place.

Answer 1

Answer:

may this answer help you.

Mark it as brilliant one.

Answer 2

For the first figure :

Cylinder :

• Radius =7cm
• height = 15cm

Total Surface Area:

$2 \times \pi \times r(h + r)$

= 2×22/7×7 (15+7)

= 22×44

= 968 cm sq.or 9.68m sq.

For the second figure :

• Diameter = 24cm (radius= 24/2= 12cm)

•Height = 18 cm

Total Surface area:

$2 \times \pi \times r(h + r)$

= 2×22/7×12 (18+12)

= 2×22/7×12 (30)

= 2×22×12×5

= 2640 cm. sq or 26.4 m.sq