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Step-by-step explanation:
17)
Extra information required is that the hypotenuse of both the traingles should be given equal, i.e, it should be given that, AC = RQ
18)
7 paise = 0.07 rupees
7rupees 7paise = 7.07 rupees
19)
Let the angle be x.
Given, x = complement of x
We know of any angle and it's complement is 90°
So,
x + x = 90°
2x = 90°
x = 45°
Therefore, the angle is 45°
20)
In the angle,
110° is an exterior angle.
50° and x are interior angles.
We know, in a triangle,
sum of two opposite interior angles = exterior angle
50° + x = 110°
x = 60°
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Answer:
question number 18 answer is 7.7.
20question answer is
sum of three angles =180
110+50+x=180
160+x=180
x=180-160
x=20.
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