please give me the sum fast
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Answer:
i)x+2x=180°
3x=180°
x=180°/3
x=60°
ii)2x+3x=90°
5x=90°
x=90°/5
x=18°
iii)x+2x+3x+4x=360°
10x=360°
x=360°/10
x=36°
iv)(3x-5°)+(x+20°)+(65°)=180°
3x-5°+x+20°+65°=180°
3x+x-5°+20°+65°=180°
4x+80°=180°
4x=180°-80°
4x=100°
x=100°/4
x=25°
v)x+45°=90°
x=90°-45°
x=45°
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