Question

find the value of the unknowns a. 3 4 a 6
+ b 1 6 8
1 1 6 4 4 find the value of a,b​

Answer 1

Step-by-step explanation:

) x+100=180 [Adjacent angles]

x=80

z=x=80

∘

[opposite angles are equal]

y=100

∘

(ii) 50+y=180

y=130

∘

x=y=130

∘

and z=x=130

∘

(corresponding angles)

(iii) x=90

∘

(vertically opposite angles)

x+y+30=180

y=180−120=60

z=y=60

(Alternate angles

(iv) z=80,y=80 (Opposite angles)

x+y=180

,x=180−80⇒x=100

(v) y=112

(opposite angles)

x+y+40=180

(Angle sum property)

x=180−152

x=28

z=x=28

(Alternate angles)

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