Question

dear guys..... plz do solve these sums for me​

Answer 1

Answer:

angle y is 40 ,z is 50and x is 90

Step-by-step explanation:

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Answer 2

Answer:

3. It is given that PQR is an isosceles triangle in which PQ = QR. We know that in an isosceles triangle the angles opposite to the equal sides are also equal. So, angle P = angle R.

Now, by using angle sum property of a triangle,

angle P + angle R + angle Q = 180°

2×angle R + Angle Q = 180° ( as angle R = angle P )

2×Angle R + 50° = 180° ( angle Q = 50° )

2×angle R = 180-50

angle R = 130/2

angle R = 65°

4.Angle y = 180°-140° ( linear pair )

Angle y = 40°

Angle z = 180-130

Angle z = 50°

Angle x = 180 - (50+40) (Using angle sum property)

Angle x = 90°