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Độ dài đường chéo AC:
\(\left(25-5\right):2=10\left(m\right)\)
Độ dài đường chéo DB:
\(25-10=15\left(m\right)\)
Diện tích hình thoi ABCD:
\(\dfrac{10\times15}{2}=75\left(m^2\right)\)
\(\rightarrow C\)
Mai mình nộp về trường rồi nên Mn giải nhanh giúp mình nhé! Trễ lắm rồi ạ!
Ta có : 10 phút = 1/6 giờ
30 phút = 1/2 giờ
45 phút = 3/4 giờ
20 phút = 1/3 giờ
40 phút = 2/3 giờ
10 phút = \(\frac{10}{60}=\frac{1}{6}\)giờ
30 phút = \(\frac{30}{60}=\frac{1}{2}\)giờ
12 phút = \(\frac{12}{60}=\frac{1}{5}\)giờ
45 phút = \(\frac{45}{60}=\frac{3}{4}\)giờ
20 phút = \(\frac{20}{60}=\frac{1}{3}\)giờ
40 phút = \(\frac{40}{60}=\frac{2}{3}\)giờ
My family have 4 people. There are my mother,my father,my elder sister and me.My parents are both the same age, 50 years old.My father is a teacher ,he is very kind and hard-working. My morther is a nurse, she is interesting, I think she is the most funny person in my family. My elder sister is 18 years old, she is a student and she is very pretty,she not only learns well but also plays the piano very well, I think she will become a pianist in the future. And me, I’m 16 years old and I’m a pupil, in the future i'll be a marketing staff. I love my familly very much.For me, family always is the assured a reliable support.
\(\frac{1}{2}+\frac{1}{5}+\frac{2}{9}\)
=\(\frac{45}{90}+\frac{18}{90}+\frac{20}{90}\)
=\(\frac{83}{90}\)
1. Songkran is the biggest, longest and the most fun festival in Thailand.
2. It is a three-day water fight throughout the whole country.
3. Wild scene of exuberance can be seen throughout the Kingdom of music, where dancing and drinking people are drenched from head to toe.
4. Water guns like hose pipe or bucket can be used to splash people.
5. One thing is for certain: you will get wet!
1,went
2,drove
3,arrived
4,asked
5,said
6,told
7,walked
8,saw
9,stopped
10,was
11,didn't go
12,got
13,did...do /did
14,loved
15,got/had
Phần I nhé(tick mk) mk sẽ làm hết
II,
1,stayed
2,went
3,had
4,was
5,visited
6,were
7,bought
8,saw
9 ,ate
10,talked
11,returned
12,thought
13,went
14,drove
15,arrived /was
16,asked
17,said
18,told
19,walked
20,saw
21,stopped/bought
22,was
23,didn't go
24,Did....get
25,did/do ...did
26,loved
27,got/had
28,bought
29,didn't go
30,had
Tick mk nha mỏi tay quá