Question

Find the measure of all the four angles of this quadrilateral.
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Answer 1

Answer:140°,100°,60°,60°

Explanation:

SUM OF ALL INTERIOR ANGLES INSIDE A QUADRILATERAL IS EQUAL TO 360° .

so, 7x+5x+3x+3x=360°

18x=360°

x=20°

then,

7x=140°

5x=100°

3x=60°

therefore measure of all four angles are 140°,100°,60°,60°

Answer 2

$\large\bold\orange{\underline{Answer:-}}$

$\tt\small\blue{Angles \:are : 140°, 100°, 60° and \:60°.}$

$\large\bold\green{\underline{Explaination:-}}$

Sum of all angles of a quadrilateral is 360°.So, we can write that :-

$7x + 5x + 3x + 3x = 360$

$= > 18x = 360$

$= > x = \frac{360}{18} = 20$

Now,

angles are,

$7x = 7 \times x = 7 \times 20 = 140 \: degrees$

$5x = 5 \times x = 5 \times 20 = 100 \: degrees$

$3x = 3 \times x = 3 \times 20 = 60 \: degrees$

$3x = 3 \times x = 3 \times 60 = 60 \: degrees$

So,

angles are : 140°,100°,60° and 60°.