Respuesta:
diametro: 14 cm
radio: 14/2 = 7 cm
area: π r² = 3,14 (7 cm)² = 3,14 * 49 cm² = 153,86 cm²
área:
A = b * h
124 cm² = b * 22 cm
124 cm² / 22 cm = b
5,6 cm = b
perimetro:
P = 22 cm + 22 cm + 5,6 cm + 5,6 cm
P = 55,2 cm
A = b * h / 2
A = 6 cm * 5 cm / 2
A = 30 cm² / 2
A = 15 cm²
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Respuesta:
diametro: 14 cm
radio: 14/2 = 7 cm
area: π r² = 3,14 (7 cm)² = 3,14 * 49 cm² = 153,86 cm²
área:
A = b * h
124 cm² = b * 22 cm
124 cm² / 22 cm = b
5,6 cm = b
perimetro:
P = 22 cm + 22 cm + 5,6 cm + 5,6 cm
P = 55,2 cm
área:
A = b * h / 2
A = 6 cm * 5 cm / 2
A = 30 cm² / 2
A = 15 cm²