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dimulka [17.4K]

3 years ago

6

um barco avista a torre de um farol segundo um ângulo de 6 com o novel do mar. sabendo quea altura do farol é de 42m, determinar

a distância do. barco até o farol. dado tg 6 = 0, 105

1 answer:

zalisa [80]3 years ago

3 0

No speak English sorry about that.l.

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Please help with 3. 4. 5.

Eddi Din [679]

3.
$\text{The Triangle Sum Theorem:}\\m\angle A+m\angle B+m\angle C=180^o$
$x+2x-1+3x+1=180\\6x=180\ \ \ |:6\\x=30$
$x^o=30^o\\(3x+1)^o=(3\cdot30+1)^o=91^o\\(2x-1)^o=(2\cdot30-1)^o=59^o$
4.
$r-6+3r-3+5r=180\\9r-9=180\ \ \ |+9\\9r=189\ \ \ |:9\\r=21$
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$\text{The Exterior Angle Theorem:}\\m\angle CAB+m\angle ABC=m\angle DCB$
$2g+9g=110\\11g=110\ \ \ |:11\\g=10$
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