Fill up :
All circles are ___

Statements: All squares are triangles No triangles is circle All circles are rectangles Conclusions: I. No rectangles is square II. All rectangles being square is a possibility

Fill in the blanks using the correct word given in brackets: All circles are ......... (congruent, similar) All squares are ....... (similar, congruent) (iii) All ...... triangles are similar (isosceles, equilaterals):

The third period ( n = 3) involves the filling up to electrons in_______elements.

All concentric circles are..... to each other.

Fill in the blanks: All point lying inside/outside a circle are called ... points/ ... points. Circle having the same centre and different radii are called ... circles. A point whose distance from the centre of a circle is greater than its radius lies in .... of the circle. A continuous piece of a circle is .... of the circle. The longest chord of a circle is a ......of the circle. An arc is a ......... when its ends are the ends of a diameter. Segment of a circle is the region between an arc and ... of the circle. A circle divides the plane, on which it lies, in .... parts.