In triunghiul ABC se cunosc AB=15cm, AC=20cm si BC=25cm.
a)Aratati ca triunghiul ABC este dreputunghic
b)Calculati sinusul unghiurilor B si C.

Răspunsul a fost dat de: USER6788
29 Agustus 2025 matematica 5 minute
4.5
154 Vezi 154 comentarii 10 Distribui
Responsive Ad Header

Întrebare

Clasă: Education Materie: matematica
In triunghiul ABC se cunosc AB=15cm, AC=20cm si BC=25cm.
a)Aratati ca triunghiul ABC este dreputunghic
b)Calculati sinusul unghiurilor B si C.
Întrebare a fost pusă de:
154 Vezi 154 Răspunsuri

Răspuns (154)

Cel mai bun răspuns
(189)
BC patrat=ABpatrat+ACpatrat, adica 625=225+400, 625=625, deci e dreptunghic, pt ca ipotenuza la ptrat e egala cu suma catetelor la patrat
sinB=AC/BC=20/25=4/5
sinC=AB/BC=15/25=3/5
Răspunsul a fost dat în data 29 Agustus 2025

Articole relevante

Why is it crucial for Google Workspace administrators to prioritize domain protection?

86 Vezi 86 comentarii

What does Canon printer error E6 signify?

41 Vezi 41 comentarii

What does 'Google Workspace Protect Domain' primarily encompass for an organization?

84 Vezi 84 comentarii

What are some recent major developments or the current status quo for the X-Men in Marvel Comics?

97 Vezi 97 comentarii

Have there been different iterations or rosters of the X-Men team over time, beyond the original five?

102 Vezi 102 comentarii

How do the X-Men's struggles reflect real-world social issues and allegories?

77 Vezi 77 comentarii

What are the diverse types of mutant powers commonly seen among the X-Men?

74 Vezi 74 comentarii

What are some of the most significant or influential story arcs in X-Men history?

81 Vezi 81 comentarii

What immediate steps should an administrator take if a Google Workspace domain experiences a potential security breach or account compromise?

141 Vezi 141 comentarii

Can updating the printer drivers resolve a Canon printer error E6?

66 Vezi 66 comentarii

How does Google Workspace protect against malware and ransomware threats impacting domain users?

96 Vezi 96 comentarii

When should I consider contacting Canon support or a repair technician for an E6 error?

87 Vezi 87 comentarii

What are the best practices for setting up and maintaining SPF, DKIM, and DMARC records for optimal domain protection?

118 Vezi 118 comentarii

Which point does Engels make in this passage

45 Vezi 45 comentarii

ce nr. este subiectul ,, familia" după propoziția:intr-o ora, familia va ajunge la bunici.?​

92 Vezi 92 comentarii

If marcus likes pizza then he likes beer. if marcus likes beer then he does not like herring. if marcus likes pizza then he likes herring. marcus likes pizza. therefore he likes herring pizza.

160 Vezi 192 comentarii

CUVANT ASEMANATOR CU A FACE ROST

32 Vezi 32 comentarii

How do I use the command prompt in the recovery environment to fix the boot issue?

82 Vezi 82 comentarii