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stepladder [879]

4 years ago

7

The area of a rectangle is 99 square units. Its width measures 9 units. Find the length of its diagonal. Round to the nearest te

nth of a unit.

1 answer:

r-ruslan [8.4K]4 years ago

8 0

Answer:

14.2

Step-by-step explanation: 99/9=11

11^2 + 9^2 =c^2

121 + 81 = c^2

The square root of 202 = c^2

14.2126704=14.2

14.2 =c

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Rectangle ABCD is rotated 180°. What rule shows the input and output of the rotation, and what is the new coordinate of A′?

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If A was placed at (-5,1) and was rotated to 180 degrees. I belive it would be (-5,1)

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Help me this one out, pls?

Flura [38]

Answer:

∠ACD= 109°

Step-by-step explanation:

∠A=38

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180-38= 2∠B( ∠B=∠C) ( angles opposite to equal sides are equal)

142=2∠B

∠B=71

∠ACD=∠A+∠B ( exterior angle property)

∠ACD= 38+ 71= 109°

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3 years ago

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natta225 [31]

Answer:

AB = 10π

Step-by-step explanation:

The length of the arc is calculated as

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= 2πr × $\frac{150}{360}$

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