Math, asked by sulagna35, 5 hours ago

Find the value of x . Please don't scam , if you don't know please don't answer , I will just report .​

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Answers

Answered by armyminhatae
1

116°

Step-by-step explanation:

< EDF=34° ( angle sum property of triangle)

angle ACB= 30° ( angle sum property )

x= 116° ( vertically opposite angle)

Answered by Yuseong
7

Answer:

116°

Step-by-step explanation:

Refer to the attachment for better understanding. Basically, 3 and x are vertically opposite angles. So, they'll be equal. We'll find the value of 3 to find the value of x. In order to find the measure of 3, we have to find the measure of 1 and 2 first.

Measure of ∠2 :

Consider the ∆ABC :

  \longrightarrow \sf{\quad { \angle A + \angle B + \angle C = 180^\circ}} \\

Reason : Sum of all the interior angles of a triangle is 180°.

  \longrightarrow \sf{\quad { 35^\circ + 115^\circ + \angle 2 = 180^\circ}} \\

Performing addition in LHS.

  \longrightarrow \sf{\quad { 150^\circ + \angle 2 = 180^\circ}} \\

Now, transposing 150° from LHS to RHS. Its sign will get changed.

  \longrightarrow \sf{\quad { \angle 2 = 180^\circ - 150^\circ}} \\

Performing subtraction in RHS.

  \longrightarrow \quad \boxed{\sf { \angle 2 = 30^\circ}} \\

○ Measure of ∠1 :

Consider the ∆DEF :

  \longrightarrow \sf{\quad { \angle D + \angle E + \angle F = 180^\circ}} \\

○ Reason : Sum of all the interior angles of a triangle is 180°.

  \longrightarrow \sf{\quad {  \angle 1 + 100^\circ + 46^\circ  = 180^\circ}} \\

Performing addition in LHS.

  \longrightarrow \sf{\quad { 146^\circ + \angle 1 = 180^\circ}} \\

Now, transposing 146° from LHS to RHS. Its sign will get changed.

  \longrightarrow \sf{\quad { \angle 1 = 180^\circ - 146^\circ}} \\

Performing subtraction in RHS.

  \longrightarrow \quad \boxed{\sf { \angle 1 = 34^\circ}} \\

Now,

Measure of 3 :

  \longrightarrow \sf{\quad { \angle 1 + \angle 2 + \angle 3 = 180^\circ}} \\

○ Reason : Sum of all the interior angles of a triangle is 180°.

  \longrightarrow \sf{\quad { 34^\circ +30^\circ+ \angle 3 = 180^\circ}} \\

Now, performing addition in the LHS.

  \longrightarrow \sf{\quad { 64^\circ+ \angle 3 = 180^\circ}} \\

Now, transposing 64° from LHS to RHS. Its sign will get changed.

  \longrightarrow \sf{\quad { \angle 3 = 180^\circ - 64^\circ}} \\

Performing subtraction in RHS.

  \longrightarrow \quad \boxed{\sf { \angle 3 = 116^\circ}} \\

Now, as we know that, ∠3 and x are vertically opposite angles so they'll be equal. This implies that,

  \longrightarrow \quad \boxed{\sf { x = \angle 3 }} \\

Substitute the value.

  \longrightarrow \quad \underline{\boxed{ \pmb{\mathfrak{x }} = \pmb{\mathfrak{116^\circ}}}} \\

Therefore, measure of x is 116°.

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