Question

I want the solution of this sum if it is helpful I'll Mark as brain list..... ​

Answer 1

Angle E = 90 + X = 180

= X = 180-90

= X = 90

Angle E = 90

Angle D = 120

let's take angle C as 'x'.

pentagon shape angle sum is 540 so,

120 + 90 + 90 + 140 + X = 540

= 440 + X = 540

= X = 540 - 440

= X = 100

to find the needed X

X + 100 = 180

= X = 180 - 100

= X = 80

Answer 2

Angle E = 90 + X = 180

= X = 180-90

= X = 90

Angle E = 90

Angle D = 120

let's take angle C as 'x'.

pentagon shape angle sum is 540

So,

= 120 + 90 + 90 + 140 + X = 540

= 440 + X. = 540

= X = 540 - 440

= X = 100

to find the x

= X + 100 = 180

= X. = 180 - 100

= X. = 80