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3 years ago

I need help with this math worksheet.im not smart at all.

Mathematics

2 answers:

garik1379 [7]3 years ago

7 0

Answer:

1) 11.581

2) 10.78

3) 14.8

4) 3.5

5) 16.28

6) .64

7) 23.3

8) 1.24

9) 6.53

10) 1.59

11) 8.79

12) 27.7919

Step-by-step explanation:

Ur smarter than u think. ^_^

Alla [95]3 years ago

3 0

Answer:

1. 0.581+11.000=11.581

2. 10.78

3. 14.8

4. 3.5

5. 16.28

6. 0.64

7. 23.3

8. 1.24

9. 6.53

10. 1.59

11. 8.79

12. 27.792

Step-by-step explanation:

Whole number is placed before the point

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Step-by-step explanation: As given in the question, given a solid oblique pyramid with a regular hexagonal base and area 54√3 cm². Also, the edge length of the base is 6cm and ∠BAC = 60°.

We are to find the volume of the pyramid.

The formula for finding the volume of a pyramid is given by

$V=\dfrac{1}{3}b\times h,$

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Here, b = 54√3 cm², h = ?

Now, from the right-angled triangle ABC, we have

$\dfrac{\textup{BC}}{\textup{AC}}=\tan 60^\circ\\\\\Rightarrow \dfrac{h}{6}=\sqrt 3\\\\\Rightarrow h=6\sqrt 3.$

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