given isosceles trapezoid ABCD (AB//CD), AC is perpendicular to BD and the length of the height of the ABCD is 7 cm. What is the area of the isosceles trapezoid ABCD?

NP

Nguyễn Phương Trang

16 tháng 2 2017

#Toán lớp 8

0

TD

Trần Đức

22 tháng 8 2023

give isosceles trapezoid abcd ( ab // cd,ab<cd) from a draw ah perpendicular ab , ah intersects bd at h . from b draw bk perpendicular ab , bk intersects ac at k a) what figure is quadrilateral ahkb?why? b) Given that E,F are the midpoints of AB, DC; I and G are respectively the intersection points of AC with BD , CH with DK . Prove that four points E,I,G,F are collincar

#Toán lớp 8

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LT

Lê Thu Trang

10 tháng 6 2018

Given a square with the length of one side is 8 cm and a isosceles triangle with the length of its base is 12 cm. If the area of the square is equal to the area of the isosceles triangle then what is the length of the height of the isosceles triangle, in cm?

#Toán lớp 8

1

NN

Nguyễn Ngọc Hà Linh

12 tháng 10 2018

32/3 nha ban

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PL

Phương Linh

16 tháng 12 2018

Given a isoseles trapizoid ABCD ( AB paralle CD) AC is perpendicular to BD and the length of the height of the ABCD is 7cm . What is the area of the isoseles trapizoid ABCD ?

I hope to everyone help me to solution this math ! thanks

#Toán lớp 9

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PL

Phương Linh

16 tháng 12 2018

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 !

Girl 2k5 -FA

#Toán lớp 9

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VQ

Vũ Quý Đạt

9 tháng 3 2017

Let ABCD be a trapezoid with bases AB, CD and O be the intersection of AC and BD. If the areas of triangle OAB, triangle OCD are 16cm², 40cm²respectively and M is the midpoint of BD, then the area of the triangle AMD is .........cm².

#Toán lớp 8

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NN

Nguyệt Nguyệt

21 tháng 3 2017

Let ABCD be a trapezoid with bases AB, CD and O be the intersection of AC and BD. If the areas of triangle OAB, triangle OCD are 16cm², 40cm²respectively and M is the midpoint of BD, then the area of the triangle AMD is .........cm².

#Toán lớp 8

0

AL

Anh Lê Hải

27 tháng 3 2017

Let ABCD be a trapezoid with bases AB, CD and O be the intersection of AC and BD. If the areas of triangle OAB, triangle OCD are 16cm², 40cm²respectively and M is the midpoint of BD, then the area of the triangle AMD is .........cm².

#Toán lớp 8

2

TT

Trần Trung Kiên

7 tháng 4 2019

22 cm²nhá bạn

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NQ

nguyễn quang hà

27 tháng 6 2020

đựng đường cao 2 bên áp dụng 2 tam giác đồng dạng suy ra tỉ số diện tích

đáp án 22 cm²

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TL

Trần Lan Phương

5 tháng 4 2017

Let ABCD be a trapezoid with bases AB, CD and O be the intersection of AC and BD. If the areas of triangle OAB, triangle OCD are 16cm², 40cm²respectively and M is the midpoint of BD, then the area of the triangle AMD is .........cm².

Bạn nào giúp mk vs!!!

#Toán lớp 8

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T

tth_new

5 tháng 4 2017

I don't know!

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KD

Khánh Đan

7 tháng 2 2022

a. The area of a trapezoid is 20m the larger base is 55dm and the smaller base is 45dm. Find the height of trapezoid.
b. Find the average of two bases of the trapezoid, known that: the area of trapezoid is 7 m2 and its height is 2m.

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