Question

If three angles of a quadrilateral are equal and the fourth angle measures 300°,find the size of the equal angles​

Answer 1

Answer:

AS WE KNOW THAT THE SUM 9F THE ANGLES OF A QUADRILATERAL IS 360 DEGREE

☆LET THE FIRST ANGLE, SECOND ANGLE AND THE THIRD ANGLE BE x degrees

Fourth angle =300 degree (GIVEN)

A/Q,we get = x+x+x+300 = 360

3x +300 =360

3x = 60

x = 20 degrees

al the equal angles =20 degrees

Answer 2

Answer:

Let each three angle measures x°

Sum of three angle= x° + x° +x°

= 3x°

Other angle measures 300°

As we know that,

Sum of all angles of a quadrilateral is 360°

Therefore, according to the given condition,

3x° + 300° = 360°

Or, 3x=60°

Or, x=20°

Therefore, each angle measures 20°

Step-by-step explanation:

$<marquee>Hope it helps you...Please mark this answer as the brainliest and follow me.</marquee>$