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Sagot :
Answer:
128
Step-by-step explanation:
Angles on a straight line always add up to 180°
We can use this fact to work out x
we do the following:
(x + 3)+49= 180
take away 49 from both sides
180-49=131
so (x + 3)= 131
take away 3 from both sides
and you are left with:
x=128
hope this helps!
Answer:
The value of x is 128°
Step-by-step explanation:
The sum of all angles lies a straight line is 180°
Therefore, (x + 3)° + 49 = 180°
Open all the bracket on LHS.
→ x° + 3° + 49°= 180°
→ x° + 52° = 180°
Shift constant from LHS to RHS, changing it's sign.
→ x° = 180° - 52°
→ x° = 128°
Therefore, x = 128°
Explore More:
The given angle are substitute x = 128°
(x + 30)° = (128 + 30)° = 158°
and
49°
Answer: Hence, the measurement of angles are 158° and 49°.
Verification:
(x + 3)° + 49° = 180°
→ (128 + 3)° + 49° = 180°
→ (131)° + 49° = 180°
→ 131° + 49° = 180°
→ 180° = 180°
LHS = RHS
Hence, verified.
Please let me know if you have any other questions.
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