Question

calcule a área de cada figura

Answer 1

a) A = l × l
A = 3× 3
A = 9m2

b) A = πr2
A = (8) 2•π
A = 64 π

c) A = (6 / 2 × 4) / 2
A = ( 3 ×4 )/ 2
A = 12 / 2
A = 6m2

d) A = b × h
A = 20 × 8
A = 160m2

e) A = ( B + b ) × h / 2
A = ( 12 + 6 ) × 4 / 2
A = 18×2
A = 36 m2

f) A = D × d / 2
A = 12 × 6 / 2
A = 12 × 3
A = 36 m2

Answer 2

a) a=L^2=>3.3 =>9cm^2
b)a=pi^2=>a=(8).2pi=>a=64pi
c)a=(6/2.4)/2=>a=(3.4)/2=>a=12/2=>a=>6m^2
d) a=6.h=>a=20.8=>a=160m^2
e) a=(B+b).h/2=>a=(12+6).4/2=>a=18.2=>a=36m^2
f)a=D.d/2=>a=12.3=>a=36m^2