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Nuetrik [128]
2 years ago
14

Calculeaza aria unui triunghi cu baza de 20 cm si inaltimea corespunzatoare ei de 12 cm

Mathematics
1 answer:
Elanso [62]2 years ago
4 0

Answer:

Aria unui triunghi =120 cm²  

Step-by-step explanation:

Folosind formula:

Aria unui triunghi = (baza x înălțimea) / 2

                          A=(20x12)/2

                            =240/2 cm²

                            =120 cm²      

Aria unui triunghi =120 cm²    

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answer is 25

Step-by-step explanation:

for something like this you need to use the law of sins. First identify all the angles. There is a 90 degree angle and a 59 degree angle and those are clear. the missing angle is = 59 + 90 = 149

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now we do cross multiplying.

say x ×sin 31 degrees = 13× sin 59

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2 years ago
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Step-by-step explanation:

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