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dalvyx [7]
3 years ago
9

Quadrilateral ABCD is inscribed in a circle. Find the measure of each angle of the quadrilateral.

Mathematics
1 answer:
Softa [21]3 years ago
8 0

Angle A= 88°

Angle C= 92°

Angle D= 80°

Step-by-step explanation:

Step 1:

  From the basic property of Quadrilateral Angle A and Angle C are supplemental( Which means sum of Angle at A and Angle at C is equal to 180 degree)

Step 2:

From the given figure We could relate that

Angle at A = (X-2)°

Angle at C = (X+2)°

Angle at D = (X-10)°

  (X-2)° + ( X+2)° = 180°

On simplification

  X-2+X+2=180°

2X=180°

and X=180/2

    X = 90°

Angle at A= (90-2)° = 88°

Angle at C = (90+2)° = 92°

Angle at D= (90-10)° = 80°

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Step-by-step explanation:

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;) Espero que eso te ayude

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What is the confidence interval estimate of the population mean percentage change in the price per share of stock during the fir
I am Lyosha [343]

Answer:

(-0.1059 ; - 0.0337)

Step-by-step explanation:

The data table is attached in the picture below:

These is a matched pair design ; which requires taking the difference of the two values for each sample :

The mean and standard deviation of the difference will be used to construct the confidence interval :

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The confidence interval :

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Tcritical(90% , 24) = 1.1711

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C.I = - 0.0698 ± 0.0361

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