the perimeter of quatrant of a circle whose radius is 7/2 cm is?
Answers
Answered by
1
Answer
12.5
Step-by-step explanation:
Radius of quadrant =
2
7
cm
Perimeter of quadrant = length of arc +(2× radius)
=(
4
1
×2πr)+2×
2
7
=(
4
1
×2×
7
22
×
2
7
)+7
=
7
11
+7
=5.5+7
=12.5 cm
Answered by
0
Answer:
perimeter of circle =2πr
2X22/7X7=44cm²
Now
perimeter of quadrant of a circle =perimeter/4
44/4=11
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