角A+角B=180度
所以2角B+角B=180度,角B=60度,角A=120度
菱形周长=4*边长
所以边长=16/4=4
菱形的高为根号(4^2-2^2)=2根号3
菱形的面积为边长*高=4*2根号3=8根号3
菱形的高为__2根号3__厘米___,菱形ABCD的面积为_8根号3平方厘米_____.
在菱形ABCD中,角A:角B=2:1,周长为16cm,则菱形的高为_______,菱形ABCD的面积为______.
在菱形ABCD中,角A:角B=2:1,周长为16cm,则菱形的高为_______,菱形ABCD的面积为______.
数学人气:946 ℃时间:2019-11-13 18:59:29
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