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Anastaziya [24]
4 years ago
10

Surface area of a pyramid

Mathematics
1 answer:
Ede4ka [16]4 years ago
7 0

The general formula for the total surface area of a regular pyramid is T. S. A. =12pl+B where p represents the perimeter of the base, l the slant height and B the area of the base

To find the surface area of a regular triangular pyramid, we use the formula SA = A + (3/2)bh, where A = the area of the pyramid's base, b = the base of one of the faces, and h = height of one of the faces.

We can also label the length (l), width (w), and height (h) of the prism and use the formula, SA=2lw+2lh+2hw, to find the surface area.

To find surface area for a rectangular prism, use the formula SA = 2ab + 2bc + 2ac, where a is the width, b is the height, and c is the length. If you're trying to find the surface area of a triangular prism, use the formula SA = 2a + ph, where a is the area of the triangle, p is the perimeter, and h is the height

Hope that was helpful.Thank you!!!

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4 years ago
A 30-meter antenna mast is stabilized by a 34 meter guy wire. How far from the base of the mast is the guy wire secured to the g
Alex
<h2>Hello!</h2>

The answer is: C. 16 m.

<h2>Why?</h2>

The figure is a right triangle, it means that we can solve it by using the Pythagorean theorem which states that, the largest side of a rectangle (hypotenuse) is equal to the sum of the other two side squares:

c^{2} =a^{2} + b^{2}

Where:

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So, by substituting we have:

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statuscvo [17]

Given:

∠A = 66°

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To find:

The distance from point B to point C.

Solution:

Using trigonometric ratio formula:

$\tan \theta=\frac{\text { Opposite side of } \theta}{\text { Adjacent side of } \theta}

$\tan A =\frac{\text { Opposite side of } A }{\text { Adjacent side of } A}

$\tan 66^\circ =\frac{BC}{AB}

$2.25 =\frac{BC}{5}

Multiply by 5 on both sides.

$5\times 2.25 =5\times \frac{BC}{5}

$11.2 = BC (nearest tenth)

The distance from point B to point C is 11.2 mi.

7 0
3 years ago
Help due in 30min please help or I will have to take my final exam
NARA [144]

Answer:

Answer A.)45

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What is the area of this triangle?
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