Question

ayudaaaaaaaa por favor​

Answer 1

Respuesta:

Explicación paso a paso:

6)

AT = π.30cm(50cm + 30cm)

AT = 30πcm(80cm)

AT = 2400πcm²

7)

h = $\sqrt{50^{2}-30^{2}}$

h = $\sqrt{2500-900}$

h = $\sqrt{1600}$

h = 40cm

V = (π(30cm)².40cm)/3

V = (π.900cm².40cm)/3

V = 3600πcm³/3

V = 1200πcm³

8)

r = $\sqrt{13^{2}-12^{2}}$

r = $\sqrt{169-144}$

r = $\sqrt{25}$

r = 5cm

AL = 5cm.π.13cm

AL = 65πcm²

9)

V = (π.(5cm)².12cm)/3

V = (π.25cm².12cm)/3

V = 300πcm³/3

V = 100πcm³

10)

AL = 3Ab

R.π.g = 3π.R²

g = (3π.R²)/R.π

g = 3R

g² = R² + h²

(3R)² = R² + h²

9R² - R² = h²

8R² = (4m)²

R² = 16m²/8

R² = 2m²

R = √2m²

V = (π.(√2m²)².4m)/3

V = (π.2m².4m)/3

V = 8π/3 m³