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Softa [21]
3 years ago
13

WILL GIVE BRAINLIEST!!!!!!!!!!!!! the answer for question one was x=30

Mathematics
2 answers:
Hoochie [10]3 years ago
5 0

Step-by-step explanation:

<h2>ANSWER:-</h2>
  • We know that sum of all angles of a Quadrilateral is 360°.
  • Using this we will find the value of x.
<h3>We are given:-</h3>
  • ABC = 4x
  • BCD = 3x
  • CDA = 2x
  • DAB = 3x

Now, all angles if summed up will equal 360°.

4x + 3x + 2x + 3x =  {360}^ \circ

{12x}^{ \circ}  =  {360}^{ \circ}

\boxed{x = {30}^{ \circ} }

Now, we will find the Respective angles:-

ABC = 4x = 120°

BCD = 3x = 90°

CDA = 2x = 60°

DAB = 3x = 90°.

VMariaS [17]3 years ago
4 0

Answer:1

1. x = 30

2. ∠ABC = 120°, ∠BCD = 90°, ∠CDA = 60°, ∠DAB = 90°

Step-by-step explanation:

It's important to note here that the measure of all interior angles in a quadrilateral will add up to 360°

We know this using the formula(n-2)\cdot 180, a 4 sided figures angles will add up to

(4-2)\cdot 180\\\\2\cdot 180\\\\360

This means that all of the angles (4x, 3x, 2x, 3x) will add up to 360.

4x + 3x + 2x + 3x = 360

Combine like terms:

12x = 360

Divide both sides by 12:

x = 30

We know now substitute x for 30 in for all of the side lengths.

∠ABC = 4x = 4\cdot 30 = 120°

∠BCD = 3x = 3\cdot 30 = 90°

∠CDA = 2x = 2\cdot 30 = 60°

∠DAB = 3x = 3\cdot 30 = 90°

Hope this helped!

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