Mathematics, 10.12.2021 06:30 dion27
Câu 6: Cho tam giác ABC vuông tại A (AB < AC). Vẽ AH ⊥ BC (H ∈ BC). Lấy điểm K
trên tia HC sao cho: HK = BH. Qua K kẻ đường thẳng vuông góc với AC tại I (I ∈ AC),
đường thẳng đó cắt tia AH tại E
a) Chứng minh ∆ AHB = ∆ AHK;
b) Chứng minh: EI // AB;
c) Chứng minh: AH = HE
d) Lấy điểm D trên đoạn CE sao cho CD = CI. Chứng minh 3 điểm A, K, D thẳng hàng
Answers: 2
Mathematics, 21.06.2019 12:30
Marie drew the triangle shown. she wants to draw a second triangle that is different from this one. use the drop-down menus below to complete the statements about the second triangle.
Answers: 1
Mathematics, 21.06.2019 21:00
Suppose a gym membership has an initial enrollment fee of $75 and then a fee of $29 a month. which equation models the cost, c, of the gym membership for m months?
Answers: 1
Mathematics, 21.06.2019 22:40
Explain in a minimum of 2 sentences how to graph the equation of the absolute value function given a vertex of (-1,3) and a value of “a” equal to ½.
Answers: 2
Mathematics, 21.06.2019 23:50
Which of the following are independent events? a) knowing that it is going to rain tomorrow, and bringing an umbrella to schoolb) knowing that you have to get up early tomorrow, and going to bed before 9 p.mc) knowing that it is going to rain tomorrow, and going to bed before 9 p.md) knowing that you have a test in school tomorrow, and studying thw night before
Answers: 2
Câu 6: Cho tam giác ABC vuông tại A (AB < AC). Vẽ AH ⊥ BC (H ∈ BC). Lấy điểm K
trên tia HC sao...
Mathematics, 01.03.2021 01:00
Biology, 01.03.2021 01:00
Mathematics, 01.03.2021 01:00
Mathematics, 01.03.2021 01:00
Mathematics, 01.03.2021 01:00
Mathematics, 01.03.2021 01:00
Biology, 01.03.2021 01:00
Mathematics, 01.03.2021 01:00
Mathematics, 01.03.2021 01:00
Mathematics, 01.03.2021 01:00
Mathematics, 01.03.2021 01:00