hellllllllllllllmmmmmmmmmmmmmmmmmm

cho hình thang ABCD có đáy AB và CD a, cho biết AB//CD , chứng minh ràng AD=BC , AB=CD b, cho biết AB =CD , chứng minh rằng AD//BC , AD=BC

Help mee pls🥺🥺 giúp tớ cho full điểm nhé!

A = $\frac{4}{1.3}$ + $\frac{4}{3.5}$ + $\frac{4}{5.7}$ +...+ $\frac{4}{99.101}$

9. This is the first time he has visited Paris.  He has …………………………………………………………………………………… 10. His father drives more carefully than him.  He ………………………………………………………………………………………...  He doesn’t ………………………………………………………………………………… 11. My house is smaller than yours.  Your house is ……………………………………………………………………………  Your house is not………………………………………………………………………… 12. I am better than I was yesterday.  Yesterday I was ………………………… giúp mik câu này vs ạ cảm ơn vote 5 sao

làm hộ?????????????????????????????????????????????????

$\frac{4}{7}$ .x -$\frac{2}{3}$ =$\frac{1}{5}$

Giúp mình nhanh nha!!!! Mình cảm ơn nhiều lắmm

Tính diện tích hình thang ABCD (AB//CD) biết góc C=30 độ , AB=3cm , BC=8cm , CD=12cm

Sử dụng công thức tronh hình dưới viết lại các câu sau: 2. Save some money or you won’t able to buy the house. • If............................................................................................................... 3. Be good or your parents will be very unhappy. If............ 4. Do it carefully or you’ll feel sorry afterwards. If................ .......................... 5. Ask him first and he will offer to help. • If....................................................... 6. Be calm or you’ll make a wrong decision. • If.................... .................................. 7. Be careful or you’ll cut yourself with that knife. • If .......................................................... ( ghạc chân dưới main clause và if- clause hộ minhg luôn nha)