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Margarita [4]
2 years ago
9

The diagram shows a circle of radius 3 cm drawn inside a square . Write down the exact value of the following and state whether

the answer is rational or not :
a) the circumference of the circle
b) the diameter of the circle
c) the area of the circle
d) the shaded area
Mathematics
1 answer:
NISA [10]2 years ago
8 0

a

Step-by-step explanation:

because the circumference

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74.958

Step-by-step explanation:

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Answer:

Option A

Step-by-step explanation:

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3 years ago
How do I correctly solve this?
Gelneren [198K]
<h3>Answer: y = 14</h3>

===================================

Explanation:

The two angles involving x add up to 180 degrees. This is because they are same side interior angles (and because the horizontal lines are parallel)

So,

(angle BCF) + (angle EFC) = 180

(5x - 66) + (2x + 50) = 180

5x - 66 + 2x + 50 = 180

7x - 16 = 180

7x - 16+16 = 180+16 ... add 16 to both sides

7x = 196

7x/7 = 196/7 .... divide both sides by 7

x = 28

This will be used to help find y

Notice how the angles BCF and ACD are vertical angles, therefore they are congruent or the same measure

angle ACD = angle BCF

9y - 52 = 5x - 66

9y - 52 = 5*28 - 66 ..... replace x with 28 (since x = 28)

9y - 52 = 140 - 66

9y - 52 = 74

9y - 52+52 = 74+52 .... add 52 to both sides

9y = 126

9y/9 = 126/9 .... divide both sides by 9

y = 14

3 0
3 years ago
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Musya8 [376]

Answer:

5 and 15

Step-by-step explanation:

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2 years ago
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