Find the sum of the angles in the polygon.
(a)90°
(b)180°
(c)360°
(d)720°

The correct option is (C) 360°

Therefore sum of the angles in the required polygon is 360°.

Step-by-step explanation:

Given:

Polygon is a Square Shape having Four Sides

And also it is called as Quadrilateral having each angle as 90°.

For a Square Quadrilateral:

Sum of the Angles of a square Quadrilateral is 360°

Therefore sum of the angles in the required polygon is 360°.

The answer is 600

Step-by-step explanation:

Front end estimation is a method of rounding use to make operations more easily and obtain approximate answers. Is called front end because we take the first digit of the number or the "front digit" and round our number to the nearest value detemined by our front end digit, making zeros the other numbers until the end.

In your case we have:

788.44 - 7 is the front number - in hundreds place -  we round to nearest hundred 788.44 and this is 800.

225.6  - 1 is the front number - in hundreds place - we round to nearest hundred 225.6  and this is 200.

We perform the operation and obtain : 800-200 = 600.