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4 years ago

Estimate the square root of 90 to the nearest tenth

Mathematics

1 answer:

frutty [35]4 years ago

8 0

<span>Square root of 90 to the nearest tenth 9.5</span>

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find the surface area of a right regular hexagonal pyramid with sides 3 cm and slant heights 6cm. show all of your work.

DedPeter [7]

Answer:

The surface area of right regular hexagonal pyramid = 82.222 cm³

Step-by-step explanation:

Given as , for regular hexagonal pyramid :

The of base side = 3 cm

The slant heights = 6 cm

Now ,

The surface area of right regular hexagonal pyramid = $\frac{3\sqrt{3}}{2}\times a^{2} + 3 a \sqrt{h^{2}+ 3\times \frac{a^{2}}{4}}$

Where a is the base side

And h is the slant height

So, The surface area of right regular hexagonal pyramid = $\frac{3\sqrt{3}}{2}\times 3^{2} + 3 \times 3 \sqrt{6^{2}+ 3\times \frac{3^{2}}{4}}$

Or, The surface area of right regular hexagonal pyramid = $\frac{3\sqrt{3}}{2}\times 9 + 9 \sqrt{36+ 3\times \frac{9}{4}}$

Or, The surface area of right regular hexagonal pyramid = 23.38 + 9 × $\frac{171}{4}$

∴ The surface area of right regular hexagonal pyramid = 23.38 + 9 × 6.538

I.e The surface area of right regular hexagonal pyramid = 23.38 + 58.842

So, The surface area of right regular hexagonal pyramid = 82.222 cm³ Answer

6 0

4 years ago

I am confused still, how would I do this?

White raven [17]

Answer:

yes, its a solution

Step-by-step explanation:

6(-2)+5(1)=-7

-12+5=-7 this is correct

2(-2)-4(1)=-8

-4-4=-8 this is also correct

8 0

3 years ago

PLS HELP<br><br> Find the value of x and y

vlada-n [284]

Answer: 'X' = 24 degrees

Step-by-step explanation:

5 times 'X' = 120 degrees (because the formula is base times height divided by 2).

120 divided by 5 = 'X'

= 24

'X' = 24 degrees

4 0

2 years ago

a trinalge has two sides of lengths 4 and 7. what value could the length of the third side be? check all that apply A.9 B.11 C.1

hram777 [196]

the answer would be f. 7 because two sides of the triangle are the same

7 0

3 years ago

There are 8 cupcakes on the plate. Five children will share them equally. How many cupcakes will each child receive?

Olegator [25]

1 3/5 is the answer can this write already?

6 0

4 years ago

Read 2 more answers