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denis23 [38]
3 years ago
5

PLSSS HELPpPP URGENT

Mathematics
2 answers:
IrinaK [193]3 years ago
6 0
<h3 /><h3 /><h3>Given,</h3>

  • A right angle that means 90°.

  • One angle is 43°

<h3>Now, </h3>

\angle \: ACB = 43 \degree +  \angle \:BCD

=> 90° = 43° + BCD

=> BCD = 90° - 43°

=> BCD = 47°

Option ( A ) 47° is correct answer

<h3 />

lozanna [386]3 years ago
4 0

Answer:

A.

Step-by-step explanation:

as u can see,the other acute angle is 43° and the other is also an acute angle and acute angles must not surpass until 80° meaning, the other acute angle is 47°

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the question is incomplete, so I looked for a similar one:

<em>After the release of radioactive material into the atmosphere  from a nuclear power plant, the hay was contaminated by iodine  131 ( half-life, 8 days). If it is all right to feed the hay to cows  when 10% of the iodine 131 remains, how long did the farmers  need to wait to use this hay? </em>

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