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viktelen [127]
3 years ago
14

Find the area of triangle ABC when b= 141 degrees a= 7 and c=8

Mathematics
1 answer:
Vlad [161]3 years ago
7 0
  You basically use the formula height*base/2 to find the area of the triangle. For instance, let's say a is your chosen base, which has a length of 7. You then use the pythagorean theorem of the right triangle (which is formed by splitting the triangle in half), which is a^2+b^2=c^2, and you substitute half your base for a and the other length (8) for c, which is the hypotenuse of the triangle. Note how this is all being done to find "b", which is the height of the triangle, which will then help you substitute all of your known values into the area formula of a triangle to answer your question. I'm not sure if b=141 degrees would have an impact on this question, but I hope this helped you in some way.
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7nadin3 [17]

Answer:

Manuel would be correct, the volumes would be equal.

Step-by-step explanation:

The formulae for finding the volume of pyramids and cones both include dividing three (multiplying by \frac{1}{3}).

Square pyramid formula: \frac{1}{3}×B×h where B is the area of the base. By plugging in numbers we have that B=314.159 and h=5. 314.159×\frac{1}{3}×5=523.5983.

Cone formula: The basic formula is the same: \frac{1}{3}×B×h, but the area of the base is found using the circle formula of π×r². For the cone we have B=314.159 and h=5. 314.159×\frac{1}{3}×5=523.5983.

Since both of these formulas came up with the same answer, we can conclude that Cone W has the same volume as Pyramid X, which is Manuel's answer.

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A 1061.3 I Hope This Helps
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Oh these are easy, I’ll explain.
To start off, the answer is 11.
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Answer:

side CB

Step-by-step explanation:

draw triangles ABC and ACD next to each other

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Harrizon [31]

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m = 3, n = 2

Replace m and n with the appropriate numbers:

7(3) - 3(2)

Multiply both sides:

21 - 6

Subtract:

21-6 = 15

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3 years ago
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