Question

2x+x+30=180
3x=180-30
3x=150
x=150/3
x=50
two angle of a triangle are equal x=50
y+50+50=180
y+100=180
y=180-100
y=80
the third angle is greater than each of those angles by 30
y=80 ​

Answer 1

Answer:

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Step-by-step explanation:

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Answer 2

Step-by-step explanation:

Answer:Electric bell is based on the principle of electromagnets. When switch is pressed, electromagnet is activated and the hammer moves and hits