Jawaban:
2. sudut PQR = 60°
3. x + y = 115°
Penjelasan dengan langkah-langkah:
2. i) sudut PQS = x° + 2x° = 90°
ii) 3x° = 90°
x° = 90° ÷ 3
x° = 30°
iii) sudut PQR = 2x°
= 2×30°
= 60°
3. sudut y = 90°
sudut x = 180° - (90° + 65°)
= 180° - 155°
= 25°
x + y = 90° + 25° = 115°
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Jawaban:
2. sudut PQR = 60°
3. x + y = 115°
Penjelasan dengan langkah-langkah:
2. i) sudut PQS = x° + 2x° = 90°
ii) 3x° = 90°
x° = 90° ÷ 3
x° = 30°
iii) sudut PQR = 2x°
= 2×30°
= 60°
3. sudut y = 90°
sudut x = 180° - (90° + 65°)
= 180° - 155°
= 25°
x + y = 90° + 25° = 115°