3 years ago

Plssss help! Find the perimeter of each polygon. Assume that lines which appear to be tangent.

Mathematics

1 answer:

Sloan [31]3 years ago

7 0

Answer:

11) 75.2

12) 44.2

Step-by-step explanation:

angles formed by intersecting lines tangent to a circle are the same length.

11)

Perimeter = 2(5) + 2(12) + 2(11.4) + 2(9.2) = 75.2

12)

Perimeter = 2(4) + 2(8) + 2(5.3) + 2(4.8) = 44.2

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katovenus [111]

Answer:

x= 8

Step-by-step explanation:

Half of a circle or a straight line is equal an angle of 180 degrees. Therefore, both the measurements of angles RPS and QPR are equal to 180 degrees.

3x + 12 + 7x + 88 = 180

Add like terms

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-100. -100

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5 0

3 years ago

Read 2 more answers

at which angles are the x and y coordinate on the unit circle exactly the same? give your answer in radians and degrees

MrMuchimi

Answer:

In radian :

$\frac{\pi }{4} \ \text{and}\ \frac{5\pi }{4}$

In degree :

45° and 225°

Step-by-step explanation:

the x and y coordinate on the unit circle exactly the same at the angles :

In radian :

$\frac{\pi }{4} \ \text{and}\ \frac{5\pi }{4}$

In degree :

45° and 225°

At those angles :

$\left( x,y\right) =\left( \frac{\sqrt{2} }{2} ,\frac{\sqrt{2} }{2} \right) \ or\ \left( x,y\right) =\left( -\frac{\sqrt{2} }{2} ,-\frac{\sqrt{2} }{2} \right)$