Question

Hepl pls
Помогите пж

Answer 1

Объяснение:

1) green two cones

r=4/2=2cm; H=8,4cm

V=⅓*Sbase*H=⅓*πr²*8,4=2²*3,14*8,4/3=

=35,168cm³

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2) red geometric figure

r=3,2cm; h=4,6cm

Vcone=⅓*πr²*h=⅓*3,14*3,2²*4,6=

≈49,3cm³

Vsphere=½*4πr³/3=2*3,14*3,2³/3=

≈68,59cm³

Vred.figure=Vcone+Vsphere=49,3+68,59=

=117,89≈118cm³

____________

3)

V=⅓*Sbase*h=⅓*230²*147=

=2592100m³

V=V2

Sbase2=240²=57600m²

h2=3*V/Sbase2=3*2592100/57600=

=90 cm

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