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Ierofanga [76]
3 years ago
7

Work out the perimeter of a quarter-circle with radius 7cm.

Mathematics
2 answers:
Flura [38]3 years ago
7 0

Answer:

25

Step-by-step explanation:

p=1÷4pir+2r

1÷4×22÷7×7+2(7)

=11cm+14cm

=25

patriot [66]3 years ago
6 0

Answer:

3.5π cm²

Step-by-step explanation:

let P represent the perimeter of a circle with radius 7

P = 2×π×r

  = 2×π×7

  = 14π

the perimeter of a quarter-circle with radius 7 = P÷4

= 14π÷4

= 3.5π

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