3 years ago

I NEED HELP PLSS ASAP

Mathematics

1 answer:

Katena32 [7]3 years ago

6 0

Answer:

I don't know why this always happens to me it looks black can u ask the question and I will answer

You might be interested in

What is the volume of a pyramid whose base is a square of area 36 and whose four faces are equilateral triangles?

irina1246 [14]

Answer:

$V = 36\sqrt{2}$

Step-by-step explanation:

The volume of a pyramid is

$V = \dfrac{1}{3}Bh$

where B = area of the base, and h = height of the pyramid

The base is a square.

$A = s^2$

$s = \sqrt{A}$

$s = \sqrt{36}$

$s = 6$

The side of the base has length 6. Each face of the pyramid is an equilateral triangle with side of length 6.

An altitude of this triangle measures

$a = \sqrt{6^2 - 3^2}$

$a = \sqrt{27}$

The pyramid is formed by 4 equilateral triangles whose bases form a square. The tips of the faces meet at a single point on top. The vertical distance from that point to the center of the base is the height of the pyramid.

$h = \sqrt{(\sqrt{27})^2 - 3^2 }$

$h = \sqrt{27 - 9}$

$h = \sqrt{18}$

$h = 3 \sqrt{2}$

Volume of the pyramid:

$V = \dfrac{1}{3}Bh$

$V = \dfrac{1}{3}(36)(3\sqrt{2})$

$V = 36\sqrt{2}$

5 0

4 years ago

How does the shape of a cross-section of a 3D figure parallel to the base relate to the volume of the 3D figure?

Ket [755]

Answer:

The shape of each cross-section of a 3D figure, relates to the volume because the area of the cross-section is determined by its shape and the area of this cross section is in the sum that calculates the volume of this 3D figure.

Step-by-step explanation:

An infinite sum of all the all the cross-sections of a 3D figure parallel to the base equals the volume of that 3D figure.

3 0

3 years ago

Find the value of 2. P 2xº 3 3 R 3 Q please help!!

Minchanka [31]

Answer:

I'd say x=30

cause the angle is 60°

8 0

3 years ago

Seema runs 5 miles more per week than her sister Padma. If Seema runs 17 miles per week, which equation could be used to find th

sashaice [31]

Answer:

Step-by-step explanation:

because 17-5=12 so the answer is 12

6 0

3 years ago

PLEASE HELP!!! In the diagram below, if m1 = 79, find the measure of each numbered angle.

Reika [66]

2 - 101
3 - 101
4 - 79
5 - 79
6 - 101
lol hope this helps <33

3 0

3 years ago