2 years ago

Work out the perimeter of a quarter circle that has the diameter of 7cm

Mathematics

2 answers:

Andre45 [30]2 years ago

8 0

Answer:

Perimeter = 12.5 cm

Step-by-step explanation:

<h2>Perimeter of quarter cirlce:</h2>

d = 7 cm

$\sf \boxed{\text{Circumference of quarter circle =$\dfrac{1}{4} \pi d$}}$

$\sf = \dfrac{1}{4}*\dfrac{22}{7}*7\\\\ =\dfrac{11}{2}\\\\ = 5.5 \ cm$

Perimeter = radius + radius + circumference of quarter circle

= diameter + circumference of the quarter circle.

= 7 + 5.5

= 12.5 cm

Likurg_2 [28]2 years ago

5 0

Answer:

24.997

Step-by-step explanation:

its actually really hard for me to explain im sorry i only know the answer-

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