Question

OFER 40 P + coroana ! rezolvare completa !!! URGENT ! IN 10 MIN
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Answer 1

Răspuns:

Explicație pas cu pas:

1.

a3=R/2 ⇒R=2×2√3cm=4√3m

l=R√3=4√3√3=12m

A=l²√3/4=144√3/4=36√3 m²

P=3l=3x12=36 m

2.  A=l²=36     l=6 cm

l=R√2          R=l/√2=6√2/2=3√2cm

a2=R√2/2=3√2√2/2=3 cm

P=4l=4x12=48 cm

3.

l=R=√3m

a6=R√3/2=√3√3/2=3/2

A=3R²√3/2=3×3×√3/2=9√3/2 cm²

P=6l=6√3 cm