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Nikolay [14]
3 years ago
15

Find the area of a sector with a central angle of 125 degrees and a radius of 11cm. Express the approximate answer to the neares

t tenth
Mathematics
1 answer:
lys-0071 [83]3 years ago
6 0

Answer:

Ok, first we find the are of the entire circle.

3.14 times 11 times 11 = 379.94.

Then, take 34.7% of that, which is 131.92361.

Rounded to the nearest tenth, it is 131.9. Hope it helps! :)

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Answer:

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Step-by-step explanation:

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Top rectangle= 12 * 6= 72

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Answer:

Step-by-step explanation:

Remark

This may be a little late, but it is well worth finding all the answers. It is a perfect test question.

You should solve the angles in this order 2 5 1 4 3. This is not the only order you could use.

Angle 2

<180 = <2 + 148                     <2 and 148 are supplementary

<180- 148 = <2

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Angle 5

1) All triangles have 180 degrees.

2) Diagonal bisect each other and are equal.

3) The two sides (one of which is opposite angle 5 are equal.

x + x + 148 = 180            All triangles have 180 degrees

                                      All rectangles have diagonals that are bisected and the bisected parts are equal.

2x + 148 = 180                 Subtract 148

2x = 180 - 148

2x = 32                            Divide by 2

x = 32/2

x = 16

But x is really <5

<5 = 16

Angle 1

<1 = <5 by the z property of angles associated with parallel lines.

Angle 4

Angle 4 and <5 are Complementary. They  make up 90 degrees.

Angle 3

<2 + the two base angles in the triangle = 180 degrees

The two base angles are equal. Call them x.

x + x + 32 = 180

2x + 32 = 180                     Subtract 32 from both sides

2x = 180-32

2x = 148                              Divide by 2

x = 148/2

x = 74

<3 = 72

7 0
3 years ago
Maths lit November question paper paper 1 grade 11 2021?​
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Answer:

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Step-by-step explanation:

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