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En resumen

2R + 2R + R + [√(3R)² + (4R)²] + 4R + 2R = 336 2R + 2R + R + 5R + 4R + 2R = 336 16R = 336 R = 336 / 16 R = 21 m area = (2R)² + [(4R)×(2R + R)] / 2 area = (2×21)² + [(12×21²)] / 2 area = 1764 + 2646 area = 4410 m².

Mejor respuesta

CAMILA321
3

2R + 2R + R + [√(3R)² + (4R)²] + 4R + 2R = 336

2R + 2R + R + 5R + 4R + 2R = 336

16R = 336

R = 336 / 16

R = 21 m

area = (2R)² + [(4R)×(2R + R)] / 2

area = (2×21)² + [(12×21²)] / 2

area = 1764 + 2646

area = 4410 m².