Marta is making two different charms for necklace one charm has a 1 cm diameter and a 3.14 cm circumference of a similar charm h
1 answer:
From what I can pick up from your problem statement, you want to know "<span>a similar charm has a diameter of 4 cm what is the circumference." Please, would you use proper punctuation in your writing, for greater clarity:
"A</span><span> similar charm has a diameter of 4 cm. What is the circumference?"
The formula for the circumference of a circle, when the diameter is known, is
C=</span>
d or C=pi*d
In this case, with diamter 4 cm, the circumference, C, is 4pi cm.
"A</span><span> similar charm has a diameter of 4 cm. What is the circumference?"
The formula for the circumference of a circle, when the diameter is known, is
C=</span>
In this case, with diamter 4 cm, the circumference, C, is 4pi cm.
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Answer:
1) 147
2) 87
Step-by-step explanation:
1) Area of triangle = × base length × height
= × 14 × 10
= 70
Area of a semicircle = ( r is the radius)
Radius = half of diameter = = 7m
Area of semicircle =
= 77 ( Nearest whole number )
Total area = 77 + 70 = 147
2) Divide the shape into 2 rectangles
Area of a rectangle = length × width
Rectangle 1 = 7 × ( 3+3+5 )
= 7 × 11 = 77
Rectangle 2 = 2 × 5
= 10
Total Area = 77 + 10 = 87