Cyclic Quadrilateral Examples with Circle Theorems -GCSE-EDEXCEL-SAT

PQRS is a cyclic quadrilateral. PS = QR, angle SPR = 60˚ and angle PQR = 92˚. Find angle QPR #GCSE #SAT #EQAO #IBSLmath

[tambuwalmathsclass]

4:46 You can as well chord AD to determine angle ABD=50⁰
Then using D+B=180⁰
25+30+50+x=180
And x will be 75⁰

[dubaigames]

How on earth does this guy have 173k subs and nt even 4k views on this vid, THIS HELPED TOO MUCH

[tembakaziqotoyi]

This example covers all what we know about a circle. Ohh what a brilliant example

[jamesgreenwood]

I keep coming across people making mistakes in their math videos. There is now way those tow angles are alternate interior angle because PS is not parallel to QR.

[Ikwebe]

In question 4 what if OBCD was a rhombus and no value was given how would you go about it

[alanchisholm]

There is a problem with the answer to Q3. Yes, the "y degree" angles are alternate interior angles because PQ and RS are parallel. However, the "10 degree" angles are not alternate interior angles, because lines SP and RQ are NOT parallel. So the solution of angles SPQ and QRS as both equal to 90 cannot be correct, and you can see SPQ is obtuse and QRS is acute.

[Infinitychannel]

I dont think the way you solved the 3rd question sir, is correct

[JDS-gxqm]

Hello Sir, I think Angle B=C=50 because angle B and C has one same chord where Angle C is 50°

[Infinitychannel]

Thank u sir, im having my final mathematics exam in Secondary school tomorrow morning (i.e 20th September2021). This helped me a lot

[ashokpandit]

Q3) how it is alternate interior angle