₦airaland Forum

Watch how I solved this shape that looked like an aeroplane: I need 4k views, watch the video below! Remember to subscribe and like the video:
https://www.youtube.com/watch?v=bILB8L2O2mo&t=49s

mickey4tutorial:
Watch how I solved this shape that looked like an aeroplane: I need 4k views, watch the video below! Remember to subscribe and like the video:
https://www.youtube.com/watch?v=bILB8L2O2mo&t=49s

Here is another method to solve the task.

30° + 70° + 20° + D = 360 °

120° + D = 360°

Collect the like terms

D = 360° - 120°

D = 240°.

But D + X = 360°...........Reflex angle

Therefore,

240° + X = 360°

Collect the like terms

X = 360° - 240°

X = 120°.............

This is a simple stuff and hope you are not feeling fly about it

Dre' tutor present online solution/lectures to all kinds of questions/Assignments in secondary school mathematics, further mathematics, physics, chemistry and biology.
All you have to do is to send your questions/topic in each subject to our DM on 07039233809 ( WhatsApp only ) and your answers/solutions will be sent to you in micro seconds.

Hot line; 07039233809......., WhatsApp only pls.

Note: Term and conditions apply.

Your success is our Major priority.

EreluRoz:
This is a simple stuff and hope you are not feeling fly about it

it is simple for those that know it, remember you know what you understand .

NDSMELODY:
Here is another method to solve the task.

30° + 70° + 20° + D = 360 °

120° + D = 360°

Collect the like terms

D = 360° - 120°

D = 240°.

But D + X = 360°...........Reflex angle

Therefore,

240° + X = 360°

Collect the like terms

X = 360° - 240°

X = 120°.............

What theorem did you use for 70+30+20+D=360?

AnotherSeun:
What theorem did you use for 70+30+20+D=360?

angle at a point sir, sum of angles at a point is 360°....Note that angle D is at a point .

NDSMELODY:
angle at a point sir, sum of angles at a point is 360°....Note that angle D is at a point .

That is not what he is asking

Babamide:
That is not what he is asking

what is he asking ?

Babamide:
That is not what he is asking

didn't you see the line of the solution he quoted ?

NDSMELODY:
didn't you see the line of the solution he quoted ?

You said sum of angles at a point is 360. That works for X+D.

What he is asking is what theorem you used to assume all the angles in the shape amount to 360.

AnotherSeun:
What theorem did you use for 70+30+20+D=360?

Babamide:
You said sum of angles at a point is 360. That works for X+D.

What he is asking is what theorem you used to assume all the angles in the shape amount to 360.

okay, I used the proof of angle at the center is twice the remaining circumference.