okekesarah01642112 okekesarah01642112

Today at 8:24 AM
Mathematics

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In the diagram below shows the cross section of a bridge with a semi circle hole. If the perimeter of the cross section is 24m. Calculate
B. Area of the cross section ( π =22/7)

In the diagram below shows the cross section of a bridge with a semi circle hole. If the perimeter of the cross section is 24m. Calculate B. Area of the cross s class=

Answer :

princedavidanicet6 princedavidanicet6

Today at 8:28 AM

Answer:

the area is 85.239 m²

Step-by-step explanation:

perimeter of a semi circle = ½πd

24 = ½ x 22/7 × d

24 x 7/11 = d

15.27 m = diameter...

area = ½πr²

= ½ × 22/7 x 7.365 x 7.365

= 85.239 m2

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