The perimeter of the sector OAB shown in Fig.13.114, is
(a) 64/3cm
(b) 26cm
(c) 64/5cm
(d) 19cm
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Answer:
The perimeter of the sector OAB shown in Fig.13.114, is
(a) 64/3cm
(b) 26cm
(c) 64/5cm
(d) 19cm
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Answered by
6
Answer:
64/3 cm
Step-by-step explanation:
OA = OB = 7cm
AB = 60/360× 2πr
= ⅙×2πr
= ⅙ × 2×22/7 ×7
= 44/6
= 22/3 cm
Perimeter = OA + OB + AB
= 7+7+22/3
= 14 +22/3
taking LCM as 3
= 42+22/3
= 64/3 cm
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