Math, asked by purushottamkumar8901, 11 months ago

answers my question please​

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Answered by kartik2507
0

Answer:

1) 47cm

Step-by-step explanation:

perimeter of circle = 2πr

we need half of the circle

perimeter of half circle = 1/2 × 2πr = πr

radius of circle is 7 cm

perimeter = 22/7 × 7 = 22 cm

perimeter of quadrant = x°/360 × 2 π r

angle of quadrant is 90

radius of quadrant is 14cm

we take only one side radius for this figure

therefore the formula is = x°/360 × πr

= 90/360 × 22/7 × 14

= 1/4 × 22/7 × 14

= 1/2 × 22/7 × 7

= 11/7 × 7

= 11 cm

perimeter of fig

= 22 + 11 + 14

= 47cm

hope you get your answer

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