Question

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Answer 1

Answer:

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Explanation:

16 a. -3/8

b. -11/18

17. 60°

Answer 2

Explanation:

Q.16 Rewrite the simplest form of:

• -15/-40
• 15/40
• 3/8

And,

• -44/72
• -11/18

Q.17 Find the value of x in the following figure and write the name of the property.

A.17 The property which is involved here is the linear pair property.

Linear pair property:

• It is a pair of adjacent angles formed when two lines intersect.
• In the figure, ∠x and 120° form a linear pair.
• The sum of these two angles will be equal to 180°.

Therefore we get:

=> x° + 120° = 180°

=> x° = 180° - 120°

=> x° = 60°

• The value of x is 60°.

Verification:

=> x° + 120° = 180°

=> 60° + 120° = 180°

=> 180° = 180°

∴ L.H.S = R.H.S