giúp mình làm bài này với mình đang vội

Cho hình chóp S. ABCD có đáy ABCD là hình thoi cạnh a SA=SB=a √2. Mp (SBD) vuông góc với (ABCD) a, tính Thể tích của S.ABCD b, kc từ A-(SBD) A-(SCD) Mọi người ơi giúp em với ạ

V. Find one mistake in each sentence and correct it • Do you remember the man which helped us? ……………………………………………………………………. • He said that he will see me later. ……………………………………………………………………. • They often play soccer in Sunday afternoons. ……………………………………………………………………. • There is many members from different countries in his team. ……………………………………………………………………. • She doesn’t like living in the countryside and so does her sister. ……………………………………………………………………. • Do you mind to open the window? ……………………………………………………………………. • They were very amazing at the performance last night. ……………………………………………………………………. • He wishes he can speak French fluently. …………………………………………………………………….

Cho tam giác ABC có đường trung tuyến AI,trọng tâm G.Trong các khẳng định sau khẳng định nào đúng: A.GA/AI=2/3 B.GI/AI=1/2 C.AI/GI=2/3 D.AI/GI=1/3

Bài tập) Tìm $ x $, $ y $ biết: $\frac{x-y}{3}$ $ = $ $\frac{x+y}{13}$ $ = $ $\frac{xy}{200}$.

IV. Complete the sentences with Conditional or Wish 1. Her mother doesn’t buy her new clothes for Tet. -> She wishes ................................................. 2. The students have never gone abroad to visit their pen pals. -> They wish .................................................. 3. I have to work tomorrow. -> I wish ..................................................... 4. If only he (not leave) ………………….here. 5. If only we (not have) .……………. a test next Tuesday.

Vẽ hoa bỉ ngạn đi NL : Ai rảnh giao lưu tí đê

.................helpp mee:(((((

II. Arrange to make complete sentences • Nam / interested / listen / music. ……………………………………………………………………. • Susan / not / have / much / time / write / her / friends / recently. ……………………………………………………………………. • Playing / sports / make / our body / strong / prevent / us / get / too / fat. …………………………………………………………………….

Đề bài câu 22 khẳng định nào sau đầy là đúng