Question

step by step explain

Q 1
Q 2
Q 3
Q 4

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Answer 1

Step-by-step explanation:

Q1

let the centre be O .

then ,

<AOF = 90°

and <AOF is vertically opposite to <BOE

so ,

<BOE = 90°

<COD = 180° (because it is a line )

that means ,

<COE + <BOE + <DOB = 180°

= 30° + 90° + 3y = 180°

3y = 60°

y = 60/3

y = 20

Q2

supplements are 180°

(i) 30°

30° + x = 180°

x = 150°

(ii)

79 + x = 180°

x = 101°

Q3

135° and y are interior angles lying on the same side of transversal

so 135 + y = 180°

y = 45°

I will 4th one later byee