In Figure, `x+y=` 270 (b) 230 (c) 210 (d) `190^0`

The number of degrees in 3 right angles is (a) 180^0 (b) 360^0 (c) 270^0 (d) 90^0

In Figure, the value of y is (a) 20^0 (b) 30^0 (c) 45^0 (d) 60^0

In Figure, if chords A B\ a n d\ C D of the circle intersect each other at right angles, then x+y= (a) 45^0 (b) 60^0 (c) 75^0 (d) 90^0

In Figure, if A B||C D , then the value of x is (a) 20^0 (b) 30^0 (c) 45^0 (d) 60^0

In Figure, if A B||C D , then x= (a) 100^0 (b) 105^0 (c) 110^0 (d) 115^0

The number of degrees in 2 right angles is (a) 90^0 (b) 180^0 (c) 270^0 (d) 360^0

In the figure, if A B=A C ,/_B A D=30^0 and A E=A D , then x is equal to a) 15^0 (b) 10^0 (c) 12. 5^0 (d) 7. 5^0

In figure A B C is an isosceles triangle such that A B=A C\ a n d\ A D is the median to base B C . Then, /_B A D= 55^0 (b) 70^0 (c) 35^0 (d) 110^0

If the line a x+b y+c=0 is a normal to the curve x y=1, then (a) a >0,b >0 (b) a >0,b >0 (d) a 0

In a circle, the major arc is 3 times the minor arc. The corresponding central angles and the degree measures of two arcs are (a) 90^0a n d\ 270^0 (b) 90^0a n d\ 90^0 (c) 270^0a n d\ 90^0 (d) 60^0a n d\ 210^0