answers my question please
Attachments:
Answers
Answered by
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
Similar questions
Science,
6 months ago
Social Sciences,
1 year ago