3 years ago

Find the distance round the semi circle with a diameter of35 cm

Mathematics

2 answers:

mote1985 [20]3 years ago

5 0

Answer: a semi circle is half a circle so 35 divided by 2 is 17.5

Step-by-step explanation:

8090 [49]3 years ago

4 0

Answer:

54.91 cm ² is the perimeter

formula =2 × 3.14× r (half the diameter)× 0.5

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Step-by-step explanation:

Given

Let:

$b \to$ read a book

$t \to$ watched TV

So, we have:

$n = 50$ -- total

$b = 16$

$t = 41$

$none = 7$

Required

Students that did both (x)

This is calculated using:

$Total = Books\ only + TV\ only + Both + None$

So, we have:

$n = (b - x) + (t - x) + x + none$

This gives:

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Open brackets

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Collect like terms

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2 years ago

Find the distance round the semi circle with a diameter of35 cm​

Find the distance round the semi circle with a diameter of35 cm