Question

find x and y give reason​

Answer 1

Answer:

x= 75°

y= 55°

Step-by-step explanation:

In ∆ ABC,

angle A+ angle B = Angle x (exterior angle property)

so, angle A= 30°

Angle B= 45°

A+B=x

30° + 45° = 75°.

In ∆ DCX,

angle D + angle C = x angle.

angle C= y

D+ C= X

D + y = x

20° + y = 75°

y = 75°-20°= 55°

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Answer 2

Answer:

Y= 75  , X = 95    ..... HOPE IT HELPS UHH... :)

Step-by-step explanation:

we know that sum of triangle's all three angles is 180...so,

30 + 45 + C = 180

75 +C = 180

C = 180 - 75

C= 105

Angle C and Y are on a straight line....

which we know that .....is 180 (straight line is 180 )

if we subtract 105 from 180 ... we will get the value of X

180 - 105

Y = 75 (degree)

now again.... we know that sum of triangles three angles is 180

y + 20 +the third angle = 180

75 + 20 + third angle = 180

95 + third angle = 180

third angle = 180 - 95

third angle = 85

now, X and the third angle is on a straight line which we know that is 180

if we subtract 85 from 180 ...

we will get the value of X

180 - 85

X = 95