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Murljashka [212]
4 years ago
10

The base of a regular pyramid is a hexagon.

Mathematics
2 answers:
dedylja [7]4 years ago
6 0

Answer:

96sqrt(3)

Step-by-step explanation:

Simplest and most intuitive way is to find area of 1 triangles and multiply it by 6.

Area of one triangle:

base = 8 and a = 4sqrt(3)

Area of 1 trangle = ba/2

Area of base of hexagon = 6 times that.

FrozenT [24]4 years ago
6 0

<u>Answer:</u>

72\sqrt{3} cm^2

<u>Step-by-step explanation:</u>

We are given that the base of a regular pyramid is a hexagon and we are to find the area of the base (which is a hexagon).

We know that the formula for the area of hexagon is given by:

A = \frac { 3 \sqrt { 3 } } { 2 } a^2

We are to find the value of a to find this area.

Finding a:

sin 60=\frac{a}{8}

a=6.92

Substituting this value of a in the above formula to get:

Area of the base (hexagon) = \frac { 3 \sqrt { 3 } } { 2 } \times 48 (6.92)^2 = 72\sqrt{3} cm^2

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Phil uses 2.3 oz of shampoo 2 times a week for 9 weeks how much shampoo does he use?
EleoNora [17]

Answer:

41.4 i think?!

Step-by-step explanation:

I did 2.3 * 9 then I did what that equaled which was 20.7 * 2 and got 41.4.

6 0
4 years ago
Jacob painted 3/4 of a wall his little brother painted 1/2 of what was left how much of the wall is still unpainted
Leni [432]

Lets do this step by step:

  • 1 wall = 1 whole or \frac{1}{1}
  • Jacob painted \frac{3}{4} of the wall
  • \frac{1}{1} - \frac{3}{4} = \frac{1}{4} (because \frac{3}{4} is a quarter of 1 whole)
  • His little brother painted \frac{1}{2} of the wall
  • \frac{1}{4}-\frac{1}{2} =
  • Find the common denominator which is 4:
  • 1/4 × 1 = 1/4 and 1/2 × 2 = 2/4
  • = \frac{1}{2} (because a half of 1/4 is 1/2)

Therefore your answer is "1/2."

Hope this helps!

Nonportrit


8 0
3 years ago
PLEASE HELP !!!!!!!! THANK YOU line m includes the points (-5,3) and (-2,-6). Line n has the same slope as line m and a y-interc
ExtremeBDS [4]

Answer: \bold{y=-3x-\dfrac{2}{3}}

<u>Step-by-step explanation:</u>

First, find the slope of line m using the slope formula: m=\dfrac{y_2-y_1}{x_2-x_1}

(x₁, y₁) = (-5, 3)  and (x₂, y₂) = (-2, -6)

m = \dfrac{-6-3}{-2-(-5)}=\dfrac{-9}{3}=-3


Next, input the slope (m = -3) and the y-intercept \bigg(b=-\dfrac{2}{3}\bigg) into the Slope-Intercept formula: y = mx + b

y=-3x-\dfrac{2}{3}

8 0
4 years ago
Corresponding angles of ΔABC and ΔDEF are congruent. Does this prove that the triangles are congruent? Justify.
Vsevolod [243]

NO.  Three congruent angles only proves the triangles are similar. You must have at least one side length to prove congruency.

SSS, SAS, ASA, AAS  prove triangle congruency.

Answer: C


4 0
3 years ago
Read 2 more answers
<img src="https://tex.z-dn.net/?f=-2y%20%2B%20y%20-%203%20%3D%206%3Cbr%3E%0A" id="TexFormula1" title="-2y + y - 3 = 6&amp;#10;"
olya-2409 [2.1K]
Combine like terms. -2y+y=-y. The equation is now -y-3=6. You need to get the y by itself so add 3 to both sides. The equation is now -y=9. You are solving for y so divide both sides by -1. The equation will be y=-9. The answer is y=-9. Hope this helps! ;)
3 0
3 years ago
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