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2 years ago

Quick anyone know the answer?

Mathematics

1 answer:

den301095 [7]2 years ago

8 0

The sum of the measures of angles in all quadrangles is 360 °. Therefore:

$(25x+1)+(25x-2)+(20x-1)+82=360\\\\70x+80=360\ \ \ |-80\\\\70x=280\ \ \ |:70\\\\x=4$

$m\angle D=(20x-1)^o\to m\angle D=(20\cdot4-1)^o=79^o\\\\Answer:\ B.\ 79^o$

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kap26 [50]

Answer:

LCM = 4590

Step-by-step explanation:

1. Find the prime factorization of 306

306 = 2 × 3 × 3 × 17

2. Find the prime factorization of 270

270 = 2 × 3 × 3 × 3 × 5

3. Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:

LCM = 2 × 3 × 3 × 3 × 5 × 17

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Blababa [14]

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5 months ago

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vichka [17]

Answer:

$\large\boxed{Surface\ Area=63\ cm^2}$

Step-by-step explanation:

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square with sides s = 3cm

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Step-by-step explanation:

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