Question

calcule área das figuras planas

Answer 1

a) L×L
9×9
81cm^2

b) b×h
12×5
60cm^2

c) a.h/2
14×6/2
84/2
42cm^2

d) b×h
3×7
21cm^2

e) D×d/2
10×5/2
50/2
25cm^2

f)(B+b).h/2
(10+6).4/2
16.4/2
64/2
32cm^2.