Question

Me ajudem!!!!!!!!!!!!​

Answer 1

a) At= b×h/2

At=5×12/2

At=60/2

At=30cm2

b) Ar=b×h

Ar= 15×10

Ar= 150cm2

c) Aq=L2

Aq=19'2

Aq=361cm2

d) Ac=3,14×r2

Ac=3,14×7'2

Ac=3,14×49

Ac= 153,86cm2