👤

Sagot :

Réponse :

Aire du carre = 70 x 70 = 4900 cm²                       Rayon = 70/2 = 35

Aire du demi cercle =  (π r²)/2.

= (π x 35 cm x 35 cm)/2.

= (π x 1225 cm)/2.

= (3,14 x 1225 cm)/2.

= 1923,25 cm²

Aire total = 4900 + 1923,25 = 6823,25 cm²

Other Questions

© 2024 IDNLearn. All rights reserved.