Question

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Answer 1

Answer:

1) x 60 y 60

2)x 45 y 135

Step-by-step explanation:

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Answer 2

Answer:

1. let the third angle in the first triangle be m

so, by linear pair

m = 180-120

m =60

as the given triangle is isoceles

so, y = m

so, y = 60

by angle sum property

y + m + x = 180

120 + x = 180

x = 60

.....

2. let the third angle of the triangle be m

here the given triangle is right angled + isoceles

so, because it is isoceles

x = m

so third angle will also be x

by angle sum property

x + x+ 90 = 180

2x = 90 = 180

2x = 180- 90

2x = 90

x = 90/2

x = 45

by linear pair

y + x = 180

y + 45 = 180

y = 135

......

3. here let the two other angles be m and n

by vertically opposite angle

m = 92

as the triangle is isoceles

x = n

so, let n = x

by angle sum property

x + x + 92 = 180

2x + 92 = 180

2x = 180 - 92

x  = 88/2

x = 44

by linear pair

n + y = 180

44 + y = 180

y = 180-44

y = 136...

Step-by-step explanation:

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