Question

the two angles of a quadrilateral are 80degree and 90degree. the other two angles are equal. find each of the equal angles.​

Answer 1

Answer:

let the first angle be x

by the question

for first angle (x+80 +100 =360)

degree

so, x+180=360

x =360-180 degree

=180 degree

the equal angle =180/2=90 degree

so 90+90+80+100=360 degree

360=360 degree ans

Step-by-step explanation:

Answer 2

Answer:

Step-by-step explanation:

Sum of all angles of a quadrilateral is 360°

A/q,  Let one of the equal angle is $x^{}$°

Now, 80° + 90° + $x^{}$° +  $x^{}$° = 360°

⇒ 170° + 2 $x^{}$° = 360°

⇒  2 $x^{}$° = 360° - 170°

⇒ 2 $x^{}$° = 190°

⇒ $x^{}$°  = $\frac{190}{2}$

⇒ $x^{}$° = 95°

the equal angles are 95°,95°

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