Step-by-step explanation:
Let angle 4 = x
Now
60° + 45° + x = 180°
reason : Sum of interior angle of triangle is 180° ...
105° + x = 180°
x = 180° - 105°
x = 75°
Hence , the value of angle 4 is 75°
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Answer:
What contributed to the decline of the Indus Valley civilization?
Select all correct answers.What contributed to the decline of the Indus Valley civilization?
Select all correct answers.
Step-by-step explanation:
<span>The correct answer is option C. i.e. Statements 1 and 2 are postulates because they are true facts.A line must contain atleast two point because then only line can be formed. Similarly, a plane is formed when there are atleast three non-collinear points.</span>
The answer is 20 hours.
If window washing crew can finish 10 windows per hour. Let;s solve how many hours will it take him to finish 200 windows.
=> 200 / 10 = 20 hours,
Answer:
17
Step-by-step explanation:
14 - 7 = 7
7 + 4 +9 =20
20 - 3 = 17