Page 1 - ws1
P. 1

SAI International School

                                                      CLASS – VII
           Mathematics
           Chapter- 7: Triangle and its properties

           Worksheet- 2

           Question  Questions                                                                             Marks
           No.
               1)      In a right-angled triangle, the side opposite to the right angle is called the      1
                       __________.
               2)      The line segment joining a vertex of a triangle to the mid point of its opposite  1
                       side is called a ___________of the triangle.

               3)      The base angles of an _________ triangle have equal measure.                        1


               4)      Which of the following statements is not correct?                                   1
                       (a) The sum of any two sides of a triangle is greater than the third side
                       (b) A triangle can have all its angles acute
                        (c) A right-angled triangle cannot be equilateral
                        (d) Difference of any two sides of a triangle is greater than the third side

               5)      If one angle of a triangle is equal to the sum of the other two angles, the         1
                       triangle is
                       (a) obtuse              (b) acute                      (c) right                    (d) equilateral

               6)      The lengths of two sides of a triangle are 11 cm and 18 cm. between what            2
                       two measures should the length of the third side fall?

               7)      One of the angles of a triangle is 74º and the other two angles are equal.          2
                       Find the measure of each of the equal angles.

               8)      PQR is a triangle, right-angled at P. If PQ = 10cm and PR = 24 cm, find QR.         3

               9)      A 15 m long ladder reached a window 12 m high from the ground on placing            3
                       it against a wall at a distance “a”. Find the distance of the foot of the ladder
                       from the wall.












               10)     The diagonals of a rhombus measure 16 cm and 30 cm. Find its perimeter.             4
   1