Question

find the solution of 8,9,10 and take 15 points​

Answer 1

Answer:

10 .60 each side

Step-by-step explanation:

sum of the angles.=180

3x=180

x=180/3

x=60

Answer 2

Answer:

10 ) given,

∠ARB = 62°

∠ARB and ∠PRQ are vertically opposite angles.

hence , ∠PRQ = 62°

∠BRQ  and ∠PRQ are linear pair of angles.

∴ ∠BRQ = 108°

9 )

the same concept is applied.

∠z = 28°

∠x and ∠y are vertically opposite angles.

∠x = ∠y = 152°

8 )

a. if y = 73°

2y-16 = 2×73 - 16

         = 130°

5x = 180 - 130

     = 50 °

x = 50 / 5

  = 10°

b. if x = 14°

5x = 70 °

2y-16 = 180 - 70

         = 110 °

2y = 126°

y = 63°

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