Question

6. Find the radius of a circle whose diameter is
(a) 9 cm
(b) 7.8 cm
(c) 9.2 cm
1
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Answer 1

Step-by-step explanation:

radius = diameter / 2

so,

a) radius = 9cm/2

b)radius = 7.8cm/2 = 3.9 cm

c)radius = 9.2cm/2 = 4.6 cm

Answer 2

Step-by-step explanation:

Given Find the radius of a circle whose diameter is

(a) 9 cm

(b) 7.8 cm

(c) 9.2 cm

• Given radius of circle. We know that diameter of a circle is twice the radius.
• So d = 2 r
• Or r = d/2
• 1. 9 cm  
• So r = 9 / 2
• Or r = 4.5 cm
• 2. 7.8 cm
•    So r = 7.8 / 2
•           = 78 / 20
•         r = 3.9 cm
• 3. 9.2 cm
•    So r = 9.2 / 2
•           = 92 / 20
•         r = 4.6 cm

Reference link will be

https://brainly.in/question/2712331