Question

Case Study
5. Read the source/te«t given below and answer any four questions (1 * 2-4)
Maths teacher draws a straight line AB shown on the black board as per follow
igure -
2:
X
60"
с
(!). Now he told Raju to draw another line CD as in the ligure.
(). The teacher told Ajay to mark ZA0D as 2z.
(ui). Suraj was told to mark ZAOC as 4y
(iv). Clive made an angle <COE - 60°
(w). Peter marked 2BOE and _BOD as y and x respectively.
Now answer the following questions -
6. What is the value of y?
(a). 48
(b). 96
(c). 100
(d). 120
(u). What is the value of x?
(a), 48
(b). 96
(c) 100
(d). 120
(tt). What is the value of 2?
(a). 48
(b). 96"
(c) 42
(d). 120
(iv). What should be the value of x + 2z?
(a), 148 (b), 360 (c). 180 (d). 120
(v). What is the relation between y and z.
(a), 2y + z = 90
(b). 2y + z = 180
(c), 4y + 2z = 120
(d) y = 22
6. Expand using suitable identity (2x
(2)
7. Find the value of the polynomial 3x - 4x2 + 7x - 5 when x = 3,
B. Rationalize the denominator of
2​

Answer 1

Answer:

A light is a form of energy which travels in a straight line and help us to see

Step-by-step explanation:

Answer 2

Answer:

c 100 is a correct answer