Question

guys pls answer , because itbis urgent
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Answer 1

Answer:

i) a = 110

ii) a = 95

   b = 40

   c = 45

   d = 85

iii) a = 45

iv) a = 50

    b = 65

Answer 2

Answer:

1) 45 + (180-115) = a

=> 45 + 65 = a

=> a = 110°

2) a+b = 135

b+c = d

a+c = 140

a+d = 180

c+135 = 180

b+140 = 180

From these equations we get:

a = 95°

b = 40°

c = 45°

d = 85°

3) a+2a+a = 180

=> 4a = 180

=> a = 45°

4) a + 130 = 180

2b = 130

From these equations we get:

a = 50°

b = 65°