
Materi Perbandingan Trigonometri
Presentation
•
Mathematics
•
10th Grade
•
Easy
Raya anjelina
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6 Slides • 5 Questions
1
Materi Perbandingan Trigonometri
Purnama Situmorang
2
Tujuan Pembelajaran
Siswa mampu menjelaskan perbandingan trigonometri dalam segitiga siku-siku
Siswa mampu menentukan perbandingan trigonometri dalam segitiga siku-siku
3
Perbandingan trigonometri segitiga ABC yang siku-siku di C didefenisikan sebagai:
sinA=sisi miringsisi depan sudutA=ca
cosA=sisi miringsisi samping sudutA=cb
tanA=sisi samping sudutAsisi depan sudutA=ba
4
Contoh:
Tentukan nilai sin K, cos K, dan tan K dari gambar segitiga KLM5
Jawab:
cosK=KMKL=21
tanK=KLLM=13=3
6
Multiple Choice
Panjang AC pada segitiga ABC di atas adalah ....
20
17
19
21
18
7
Multiple Choice
Sisi yang berada berhadapan dengan sudut siku-siku dinamakan sisi ....
miring
samping
depan
tegak
datar
8
Multiple Choice
Nilai sinα adalah ....
51
53
35
45
54
9
Multiple Choice
Nilai dari cosα pada segitiga ABC adalah....
135
1513
1312
513
512
10
Multiple Choice
Perbandingan antara sisi samping dan sisi miring pada segitiga siku-siku dalam trgionometri disebut ....
cosecan
sinus
cosinus
secan
tangen
11
Apa yang dapat kalian simpulkan setelah mengikuti kegiatan pembelajaran hari ini?
Materi Perbandingan Trigonometri
Purnama Situmorang
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