This can also be done by applying Cosine formula (for angle B ) to the the triangles ABC & ABD

This can be directly derived by The APOLLONIUS THEOREM an underrated theorem.

Wow, her english is easy. I can undestand it with b1 lvl. I learn math and english in the same time.

I know this formulae but I don't know how to derive it... Good explanation

تمرين جميل جيد . رسم واضح مرتب. شرح واضح مرتب . شكرا جزيلا لكم والله يحفظكم ويرعاكم ويحميكم جميعا . تحياتنا لكم من غزة فلسطين .

Nice lesson mam Good tool provided here to obtain any value

A good question on application of Pythagoras theorem, and very well explained 👍👍👍

Awesome explanation!! Great job.👌👌

THANK YOU SO MUCH...ITS WAS VERY HELPFUL

Nice explain thank you so much

Nice explanation..... Thank you.

Super good explanation

Thankyou so much mam for saving our time with this straight forward video 👍👍👍

Thank you very much ma'am... Great explanation 😁

Great teacher

Very helpful

Continue doing videos

Great mam Thanx a lot

when u looking for a video explaining how to find the median and you read the thumbnail and get satisfied

I like your voice besides the concept

👍🏽👍🏾👍🏾👍🏾

Thank u so much... cleared the concept

Cannot thank you enough for this!

Tq mam🙏

thank u so much mam 🙏🙏🙏

Can be solved by stewarts theorem , too

thanx

Slow down...