How does the vertex solved in octagon shapes

Mathematics

1 answer:

yKpoI14uk [10]2 years ago

5 0

Answer:

Vertex. An octagon has eight vertices (corners).

Step-by-step explanation:

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In the right triangle shown, DF=EF=3DF=EF=3D, F, equals, E, F, equals, 3.

jarptica [38.1K]

Answer:

<h2>The side DE is 4.2 units long, approximately.</h2>

Step-by-step explanation:

In the given triangle, side DE is the hypothenuse. So, we can use Pythagorean's Theorem, where both legs are 3 units long.

$DE^{2}=DF^{2}+EF^{2}\\ DE^{2}=3^{2}+3^{2}\\DE^{2}=9+9\\DE=\sqrt{18} \approx 4.2$

Therefore, the side DE is 4.2 units long, approximately.

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3 years ago

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ZanzabumX [31]

Answer:

74 °

Step-by-step explanation:

the sum of every angle from a triangle is 180

so to find b is add 80 with 26 which is 106

then subtract 180 with 106

the final answer is 74

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3 years ago

Analyze the diagram below and complete the instructions that follow.

Ratling [72]

Answer:

your answer is c

Step-by-step explanation:

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4 years ago

Read 2 more answers

For <img src="https://tex.z-dn.net/?f=f%28x%29%20%3D%204x%2B1" id="TexFormula1" title="f(x) = 4x+1" alt="f(x) = 4x+1" align="abs

Kamila [148]

$\bf \begin{cases} f(x)=4x+1\\ g(x)=x^2-5\\[-0.5em] \hrulefill\\ (f\circ g)(4)=f(~~g(4)~~) \end{cases} \\\\[-0.35em] ~\dotfill\\\\ g(4)=(4)^2-5\implies g(4)=16-5\implies \boxed{g(4)=11} \\\\\\ f(~~g(4)~~)\implies f(11)\implies f(11)=4(11)+1\implies \blacktriangleright f(11)=45\blacktriangleleft$