Question

Soal Matematika Kelas 7!
Jawab pakai Cara ya!​

Answer 1

Diketahui:

3b+44° = 90°

360°-275° = 4a-3°

Ditanyakan:

a+b

Jawab:

3b+44° = 90°

3b = 90°-44°

3b = 46°

b = 15,3°

360°-275° = 4a-3°

85° = 4a-3°

85°+3° = 4a

88° = 4a

22° = a

a+b = 22°+15,3° = 37,3°

Mapel: Matematika

Kelas: 7

Materi: Sudut

Answer 2

Jawaban:

360°=275+(4a-3)

(4a-3)=360-275

4a-3=85

4a=85+3

4a=88

a=88/4

a=22

180°=(4a+3)°+(3b+44)°

180°=(4x22+3)°+(3b+44)°

180°=(88+3)°+(3b+44)°

180°=91°+(3b+44)°

3b+44=180°-91°

3b+44=89°

3b=89°-44

3b=45°

b=45°/3

b=15°

a+b

=22°+15°

=37°

maaf kalo salah