Question

(touch on picture)

find the value of 'x' and 'y'




[std.7th maths]​

Answer 1

y+40°=105°

y=105°-40°

y=65°

x+y+40°=180°. (sum of int. angles of triangle=180°)

x+65°+45°=180°

x+110°=180°

x=180°-110°

x=70°

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Answer 2

Answer:

X=65 degrees

Y=75 degrees.

Step-by-step explanation:

Let ANGLE C=40

ANGLE A=Y

ANGLE B =105

ANGLE D=X.

The value of y=

angle A+angle B

SO Y+105 =180

Y=180 - 105

Y=75 degree.

The value of x =

Angle A+C+D=180 (property of triangle)

40 +75+D=180

115 +D=180

D=180-115

D=65

So x=65 degree

I hope it will help you

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