jacobnarc705 jacobnarc705
  • 24-10-2020
  • Mathematics
contestada

find the area pls i need it
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find the area pls i need it class=

Respuesta :

Аноним Аноним
  • 25-10-2020

Answer:

521 mm²

Step-by-step explanation:

Hi there !

A = Asemicircle + Atrapeze

  • Asemicercle formula

r = d/2 = 20mm/2 = 10mm

Asc = π·r²/2

= 3.14·(10mm)²/2

= 3.14×100mm²/2

= 157 mm²

  • Atrapeze formula

At = (b + B)×h/2

= (20mm + 32mm)×14mm/2

= 52mm×7mm

= 364 mm²

  • A = Asc + At

= 157mm² + 364mm²

= 521 mm²

Good luck !

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