Q 1: Find the value of the expression 7x+9, when x=4.|
Q 2: In a quadrilateral, three angles are 55degrees, 65degrees and 105 degrees, what is the fourth angle.|
Q 7: In a square the diagonals bisect at right angle.|
Q 8: If the length, breadth and height of a room are 16cm., 20 cm. and 6cm. respectively find the total area of four walls.|
432 Sq. cm.
422 Sq. cm.
400 Sq. cm.
442 Sq. cm.