chin160179 chin160179

20-07-2021
Mathematics

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Help anyone can help me do this question,I will mark brainlest.

Help anyone can help me do this questionI will mark brainlest class=

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Аноним Аноним

20-07-2021

Step-by-step explanation:

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siya90258 siya90258

20-07-2021

Answer:

Q.8 . circumference of circle =2×pi×r

157cm =2×3.14×r

157cm =6.28×r

157cm/6.28 =r

25cm =radius

Q.9. circumference of circle=2×pi×r

99cm =2×22/7×r

99cm =44/7×r

(99cm×7)/44=r

15.75cm =r

2×15.75cm =diameter

31.5cm=diameter

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