Question

please help me thanks for number 9

Answer 1

Answer:

8

Step-by-step explanation:

We know, the sum of all the exterior angles of any polygon is 360°.

3 of them are 15°, 25° and 70° and the rest are 50° each.

Now, 15°+25°+70°+(n-3)×50°=360°

⇒110°+(n-3)×50°=360°

⇒50n-150=360-110

⇒50n-150=250

⇒50n=250+150=400

⇒n=400÷50

⇒n=8

Hope this helps.

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