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coldgirl [10]
3 years ago
15

What is the radius of polygon JKLMN ?

Mathematics
1 answer:
Nataly [62]3 years ago
5 0

Answer:

Radius of the circle is 5 units.

Step-by-step explanation:

JKLMN is a regular polygon inscribed in a circle.

Since, its a regular polygon,

JN = NM = 5.88 units

"Perpendicular drawn from the center of the circle to any chord is the bisector of the chord"

Therefore, PQ will be the perpendicular bisector of chord NM.

QM = \frac{1}{2}(NM)

QM = \frac{1}{2}(5.88)

QM = 2.94 units

By applying Pythagoras theorem in ΔPQM,

PM² = PQ² + QM²

PM² = (4.05)² + (2.94)²

PM = \sqrt{16.4025+8.6436}

PM = \sqrt{25.0461}

PM = 5 units

Therefore, radius of the circle is 5 units.

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Thwre are 28 clients who don not play any of the instrument using the principle of Venn distribution.

<u>Using a Venn diagram analogy</u> :

  • Total number of client, U = 108
  • Piano, P = 42
  • Guitar, G = 51
  • Piano and Guitar, (PnG) = 13
  • None =?

<u>From the information given</u> :

  • P only = 42 - 13 = 29
  • G only = 51 - 13 = 38

<u>The total number of clients can be related thus</u> :

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108 = 29 + 38 + 13 + None

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None = 108 - 80

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Therefore, the number of clients who do not play any of the instruments is 28

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Pat could do the job alone in 8 hours.

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Output = Rate * time

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Let X be the total output

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