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3 years ago

identify the postulate or theorem that proves the triangles congruent. AAS, SAA, ASA, The triangles cannot be proven congruent

Mathematics

1 answer:

nirvana33 [79]3 years ago

4 0

AAS and SAA don't prove congruence.
You can have two triangles that have AAS or SAA and are not congruent.

From this picture, these triangles are congruent by ASA .

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3 years ago

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Geometric Series assistance

Levart [38]

we have been asked to find the sum of the series

$\sum _{n=1}^5\left(\frac{1}{3}\right)^{n-1}$

As we know that a geometric series has a constant ratio "r" and it is defined as

$r=\frac{a_{n+1}}{a_n}=\frac{\left(\frac{1}{3}\right)^{\left(n+1\right)-1}}{\left(\frac{1}{3}\right)^{n-1}}=\frac{1}{3}$

The first term of the series is $a_1=\left(\frac{1}{3}\right)^{1-1}=1$

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$S_5=1\cdot \frac{1-\left(\frac{1}{3}\right)^5}{1-\frac{1}{3}}$

On simplification we get

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Hence the sum of the given series is $\frac{121}{81}$

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3 years ago

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3 years ago

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Step-by-step explanation:

step 1. use the poisson formula given as

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3 years ago