Question

The measure of three angle of quadrilateral is 30degree ,70degree ,100degree .find out the measurementof fourth angle

Answer 1

Given :

★ Measure of Three angles of Quadrilateral is 30° , 70° and 100° .

To Find :

★ Measure of Fourth angle .

Solution :

Let :

• The fourth angle be = x

Now :

30° + 70° + 100° + x = 360°

200° + x =360°

x = 360/200

x = 160°

Therefore , The Measure of Fourth angle is 160° $.$

═════════════════════════

Check :

30° + 70° + 100° + 160° = 360°

360° = 360°

Hence Checked !