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3 years ago

In the figure, AB is a diameter of circle P. What is the arc measure of AD in degrees?

Mathematics

1 answer:

fiasKO [112]3 years ago

8 0

The arc measure of AD in degrees is 43 degrees.

Step-by-step explanation:

The angle measure of the straight line is 180°.
∠APD + ∠DPC + ∠CPB = 180°

⇒ (7x+1)° + 90° + (9x-7)° = 180°

⇒ 16x + 84° = 180°

⇒ 16x = 96°

⇒ x = 96/16

x = 6

Substitute x=6 for angle ∠APD = (7x+1)°

∠APD = 7(6)+1 = 43°

The arc measure of AD in degrees = 43 degrees.

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2 years ago

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Step-by-step explanation:

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2 years ago

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Step-by-step explanation:

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3 years ago

The area of a rectangle is 229.2 m2. If the length is 15 m, what is the perimeter of the rectangle

igor_vitrenko [27]

Answer:

$\large\boxed{P=60.56\ m}$

Step-by-step explanation:

The formula of an area of a rectangle:

$A=lw$

l - length

w - width

We have

$A=229.2\ m^2\\\l=15\ m$

Substitute:

$15w=229.2$ divide both sides by 15

$w=15.28\ m$

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$P=2(l+w)$

Substitute:

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3 years ago