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Given a square with the length of one side is 8cm and an isosceles triangle with the length of its base is 12 cm . If the area of the square equal of the area of the isosceles triangle then is the length of height of the isosceles triangle ?
M.n ơi kb vs mk nha ! Mk là thành viên ms nên chưa có bn !
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6 tháng 1 2022 lúc 6:15
The triangle ABC has \(AB=24cm\). If D is on the line segment AC such that \(\widehat{ABC}=\widehat{BDC}\)and \(AD=7cm;DC=9cm\)then what is the length of BD?
23 tháng 3 2022 lúc 22:00
Circle O has diameters AB and CD perpendicular to each other. AM is any chord intersecting CB at N.I is the center of the circle inscribed in triangle AMB. Prove that M, I, D are collinear points
8 tháng 1 2022 lúc 21:07
Let I be the incentre of acute triangle ABC with ABne AC. The incircle omegaof ABC is tangent to sides BC, CA and AB at D, E, F respectively. The line through D pependicular to EF meets omegaagain at R. Line AR meets omegaagain at P. The circumcircles of triangles PCE and PBF meet again at Q. Prove that lines DI and PQ meet on the line through A perpendicular to AI.
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Let I be the incentre of acute triangle ABC with \(AB\ne AC\). The incircle \(\omega\)of ABC is tangent to sides BC, CA and AB at D, E, F respectively. The line through D pependicular to EF meets \(\omega\)again at R. Line AR meets \(\omega\)again at P. The circumcircles of triangles PCE and PBF meet again at Q. Prove that lines DI and PQ meet on the line through A perpendicular to AI.
8 tháng 1 2022 lúc 21:07
Let I be the incentre of acute triangle ABC with ABne AC. The incircle omegaof ABC is tangent to sides BC, CA and AB at D, E, F respectively. The line through D pependicular to EF meets omegaagain at R. Line AR meets omegaagain at P. The circumcircles of triangles PCE and PBF meet again at Q. Prove that lines DI and PQ meet on the line through A perpendicular to AI.
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Let I be the incentre of acute triangle ABC with \(AB\ne AC\). The incircle \(\omega\)of ABC is tangent to sides BC, CA and AB at D, E, F respectively. The line through D pependicular to EF meets \(\omega\)again at R. Line AR meets \(\omega\)again at P. The circumcircles of triangles PCE and PBF meet again at Q. Prove that lines DI and PQ meet on the line through A perpendicular to AI.
30 tháng 8 2020 lúc 15:29
The area of triangle ABC is 300 . In triangle ABC, Q is the midpoint of BC, P is a point on AC between C and A such that CP = 3PA . R is a point on side AB such that the area of \(\Delta\)PQR is twice the area of \(\Delta\)RBQ . Find the area of \(\Delta\)PQR
6 tháng 1 2022 lúc 6:13
The route AB is 60km long. At 7 am, one motorbike travels from A to B with a constant speed. When this motorbike reaches B, it returns to A immediately with the speed increase by 10km/h and reaches A at 10.30 am at the same day. What is the original speed of this motorbike?
Give a rectangle such that its width is a hlf as its length. The ratio of the perimeter of the rectangle to its width is ...
Slove each exercise by using the golden ratio (1 + \(\sqrt{5}\)) : 2.
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The ratio of the height : width of a flower garden is equal to the golden ratio. The width of the garden is 14 feat. Find the lenght of the garden. Express your answer in simplest radical form and in feet