👤

Sagot :

Bonsoir,

A)

formule: 3,14 *r²

3,14 *36 => 113,04m²

b)

1/2 disque:

113,04 /2 =>56,52m²

1/4 disque:

56,52/2 =>28,26m²

c)

l*L

L = 6m

3*6 => 18 m²

d)

28,26 +18 +28,26 =>74,52m²

© 2024 IDNLearn. All rights reserved.