Question

Give reasons for the following:
a. It is not possible to have exterior angle of a regular polygon as 40 degrees.

b. It is not possible to have interior angle of a regular polygon as 145 degrees.


Pls answer,thanks alot.Have a great day!!

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Answer 1

Answer:

First is possible

Reason as follow

as number of sides = 360/ exterior angle

= 360/40

= 9.

Second is not possible

reason as follow

Exterior angle = 180 - interior angle

= 180 - 145 = 35

as number of sides = 360/ exterior angle

= 360/35

= 72/7 which is not a natural number.

Answer 2

Answer:

Perfect questions for guys interested in maths..

2. The value of x + x(xx) when x = 2 is:

(a) 10, (b) 16, (c) 18, (d) 36, (e) 64

Solution:

x + x(xx)

Put the value of x = 2 in the above expression we get,

2 + 2(22)

= 2 + 2(2 × 2)

= 2 + 2(4)

= 2 + 8

= 10

Answer: (a)