kiara420
contestada

WILL GIVE BRAINLIEST
Shape S below is exactly one quarter of a solid sphere, centre O.
The volume of shape S is 19441 cm
Find the surface area of S.
Give your answer correct to 3 significant figures.
You must show your working.
+
Shape S
Volume of sphere = ☆
ar
Surface area of sphere = 4ter?
Total marks: 5

WILL GIVE BRAINLIEST Shape S below is exactly one quarter of a solid sphere centre O The volume of shape S is 19441 cm Find the surface area of S Give your answ class=

Respuesta :

YuHisui

Answer:

905 cm^2

Step-by-step explanation:

Work out the radius using the volume.

SA = curved + 2 flat semi-circles

     = 1/4 x SA sphere + 2 x semi-circle

     = 1/4 x 4πr^2 + 2 x 1/2πr^2

     = 1/4 x 4π  x 12^2 + 2 x 1/2πr^2

     = 904.778

     =905 cm^2

Otras preguntas