Respuesta :
Answer:
the first one is 371 and the second one is 46
Step-by-step explanation:
Answer:
side of the octagon = 46.38 mm
Perimeter of the octagon = 371.04 mm
Step-by-step explanation:
Area of octagon = 10,391.9 mm²
But, area of octagon is given by the formula = 2(1 + √2)side²
⇒ 2(1 + √2)side² = 10391.9
⇒ 4.83 × side² = 10391.9
⇒ side² = 2151.53
⇒ side of the octagon = 46.38 mm
Perimeter of the octagon = 8 × side
⇒ Perimeter of the octagon = 8 × 46.38
⇒ Perimeter of the octagon = 371.04 mm
