K
Khách
Hãy nhập câu hỏi của bạn vào đây, nếu là tài khoản VIP, bạn sẽ được ưu tiên trả lời.
Các câu hỏi dưới đây có thể giống với câu hỏi trên
KR
4 tháng 2 2018
Độ dài đáy của hình tam giác đó là :
2 x 123 : 12 = 20,5 ( cm )
Đáp số : 20,5 cm
24 tháng 2 2022
Diện tích đáy là:
128 : 2 = 64 (cm2)
Vì 64 = 8 x 8
Nên cạnh hình lập phương là 8 cm :
Thể tích hình lập phương là :
8 x 8 x 8 = 512 (cm3)
T cho mik nha
Chúc bạn học tốt !!! :))
3 tháng 6 2021
bằng 105 nha. gọi s là kí hiệu diện tích ta có ":
Sabg=1/4 Sabc
Schb=1/2 Sabc
=> Schb- Shqgb=S qgc
S abg- S hqgb= S ahq
Từ 2 điều trên t thấy :
S qgc = 2Sahq
ta lại thấy:
S ahq= 1/3 Sqgc
ta coi S qgc là 2p thì S ahq và S bhq là 1p và S bqg lad 2/3 phần.
S abg =1/4 S abc= 1120:4= 280
Sbhq= 280:( 1+1+2/3)= 105
Đ/s:...................
Nhớ k nha Phanh, để t bảo cô An m tra mạng
5 tháng 11 2017
a.1kg275g=1,275kg 3kg 45g=3,045kg
7 tấn 125kg=7,125tấn 2 tấn 64kg=2,064tấn
1 tấn 3 tạ=1,3tấn 4 tạ=0,4tấn
12kg 5g=12,005kg 177kg=0,177tấn
64g=0,064kg 4 yến=.........tấn
b.8,56 dm2 (vuông)=.856cm2 0,42m2=42dm2
1,8ha=18000000m2 0,001ha=10m2
6,9m2=6m2 0,9dm2 2,7dm2=2dm2 0,7cm2
2,5km2=250000m2 80dm2=0,8m2
0,03ha=300m2
25 tháng 5 2021
chỉ có b) thôi . là từ:Đó thay thế cho những làn hương quen thuộc của đất quê
20 tháng 10 2018
I. Nội qui tham gia "Giúp tôi giải toán"
1. Không đưa câu hỏi linh tinh lên diễn đàn, chỉ đưa các bài mà mình không giải được hoặc các câu hỏi hay lên diễn đàn;
2. Không trả lời linh tinh, không phù hợp với nội dung câu hỏi trên diễn đàn.
3. Không "Đúng" vào các câu trả lời linh tinh nhằm gian lận điểm hỏi đáp.
Các bạn vi phạm 3 điều trên sẽ bị giáo viên của Online Math trừ hết điểm hỏi đáp, có thể bị khóa tài khoản hoặc bị cấm vĩnh viễn không đăng nhập vào trang web.
50004 cm2 nhé mà sao lại là ngữ văn kia, phải là toán chứ
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