Question

1. Factorise

3 + 4

2 + − 6 . 3

2. AOB is a line. OC ⊥ AB. Show that ∠COD = 1

2

(∠AOD - ∠BOD) 3



3. Prove that the line segment joining the mid-points of two sides of a triangle is parallel to the 3

third side and half of it.

4. Construct a △PQR in which QR = 7 cm, ∠Q = 600

, PQ+PR = 12 cm. 3

5. Draw the graph of the equation + = 3. 4

6. Prove that a cyclic parallelogram is a rectangle. 4​

Answer 1

Answer:

BOD) 3

3. Prove that the line segment joining the mid-points of two sides of a triangle is parallel to the 3