Math, asked by shruti282199, 8 months ago

Practice Questions
1 In the figure PQ 11 Rs, and I is transversal, then what
will be the value of n?

P
9
2x +30
x +70°
S​

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Answers

Answered by Anonymous
20

Question :

In the given figure PQ || RS, and l is Transversal, then what will be the Value of x.

To Find :

  • we need to find the value of x

Given :

  • PQ || RS and l is Transversal.

We know that,

As it is given in the Question that PQ is parellel to RS and l is Transversal , Then pair of Alternate angles are equal to each other.

So,

⇛∠2x + 30 = ∠x + 70

⇛ 2x - x = 70 - 30

⇛ x = 40

Hence,

  • Value of x = 40

And the given angles are :-

⇛2x + 30

⇛2 × 40 + 30

⇛80 + 30

⇛110°

And,

⇛ x + 70

⇛40 + 70

⇛110°

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Answered by PixleyPanda
2

Answer:

Step-by-step explanation:

It is given that   ∠1 = 120o1 = 120o

From the figure we know that ∠1 and ∠2 form a linear pair of angles

So it can be written as

1 +\leq  2 = 180o

By substituting the values

120o + \leq 2 = 180o

On further calculation

\leq 2 = 180o – 120o

By subtraction

\leq 2 = 60o

From the figure we know that ∠1 and ∠3 are vertically opposite angles

So we get

\leq 1 = \leq 3 = 120o

From the figure we know that ∠2 and ∠4 are vertically opposite angles

So we get

∠1 = ∠5 = 120o

It is given that, l || m and t is a transversal

So the corresponding angles according to the figure is written as

∠1 = ∠5 = 120o

∠2 = ∠6 = 60o

∠3 = ∠7 = 120o

∠4 = ∠8 = 60

hope it helps

:)

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