##### Across

**2.**the _____ side of the triangle shares a common vertex with X**7.**a proposition ,whose truth can easily be deducted from a preceding theorem is called ____**8.**if the angle which measure between 180 and 360 degree is____**10.**parallelogram on the same base and between the same parallels are _________**11.**an ______of a triangle corresponding to any side is the length of perpendicular drawn from the opposite vertex to that side**14.**_______ is a quadrilateral in which both the pair of opposite side are parallel**15.**the part of the circumference which is greater than the semi-circle is___________________**17.**let a,b,c be three number and c be largest ,if c^2=a^2+b^2 the number a,b,and c are called ________**18.**a line meets the circle only at one point is called as _______**19.**a quadrilateral with one pair of parallel sides**20.**the formula of 1/2Bh is used to determines triangle _____

##### Down

**1.**a straight line that intersects two or more co planar line is called as..**3.**the self evident truth which are accepted without any proof are called as _______**4.**the largest side of a right angle triangle is called as _________**5.**if any two sides of a triangle are equal ,the triangle is said to be _________**6.**if each angle of a polygon is less than 180 is called as_______**9.**in a right angled triangle the square of the length of the hypothenuse is equal to the sum of the square of the length of the remaining two sides**12.**two adjacent angles are 90 degree each,they form a _______**13.**whose one end is fixed and the other end can be extended**16.**in a circle ,the angle subtended by an arc at the center of the circle is called as__________