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miv72 [106K]
2 years ago
6

I need help with 7th grade math please 45 points need help ASAP + brainleist

Mathematics
2 answers:
Vlada [557]2 years ago
8 0

Answer:

<u>77.98 ft</u>

Step-by-step explanation:

Perimeter :

  • 2(21) + 14 + 3.14 x 7
  • 42 + 14 + 21.98
  • 56 + 21.98
  • <u>77.98 ft</u>
igor_vitrenko [27]2 years ago
3 0

Answer:

Area = 601.8760801 ft^2

Step-by-step explanation:

Area of Rectangle: Area = Length* Height

Area of a Semi-Circle = π*r^2 /2

Area of Rectangle: Area = 14 * 21 = 294 ft^2

Area of a Semi-Circle = π * 14^2 / 2 = π * 196/2 = π * 98 ft^2

Add the Two Area: 294 ft^2 + 98π ft^2 = 601.8760801 ft^2

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