tính chu vi của hình thoi biết 2 đg chéo lần lượt là 16 cm,30cm
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4,8cm dung 10000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
Chu vi hình thoi là:
\(6.4=24\left(cm\right)\)
Diện tích hình thoi là:
\(\dfrac{4.5}{2}=10\left(cm^2\right)\)
Đáp số: Chu vi: \(24cm\)
Diện tích: \(10cm^2\)
Chu vi hình thoi là: (16+30)x2=92(cm)
Đáp số:92cm.
K mình nha.
cạnh hình thoi là: x =\(\sqrt{8^2+15^2}\)= 17cm
chu vi hình thoi:
17.4 = 68cm