Math, asked by aashi1126, 2 months ago

78 = 2 × 22/7 × r ( 10 + r)

Answers

Answered by lakshmimaity16

0

Answer:

120856

Step-by-step explanation:

123-345+567÷ 67890

Answered by AbdulRubSir

0

Step-by-step explanation:

78 = 2 x 3.14 x r(10 + r)
39 = 3.14 x r(10 + r)
12.42 = r(10+r)
r = 12.42/(10+r)

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