Question

8(a) In the given figure, find value of a, b and c.​

Answer 1

Answer:

Δpqs

55+60+a=180°

115+a=180

a=180-115

a=65

ΔPSR

40+B+C=180

B+C=180-40=140

A+B=180

=65+B=180

B=180-65

B=115

SO NOW B+C=140

=115+C=140

C=140-115

C=25

Step-by-step explanation:

A=65

B=115

C=25

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Answer 2

Answer:

a = 65º

b = 115º

c = 25º

Step-by-step explanation:

55 + 60 + a = 180º (Angle Sum Property)

115 + a         = 180

    a             = 65º

180 - a   = b (Linear Pair)

180 - 65 = b

   115º      = b

40 + b + c   = 180º (Angle Sum Property)

40 + 115 + c = 180

   155  +  c   = 180

          c        =  25º

Therefore, a = 65º, b = 115º and c = 25º

Hope this helps...