Isosceles trapezoid's upper, lower bottom and waist length are 4cm, 10cm, 6cm respectively. How many upper and lower corners should be reminded

Because the angle of the top of the angle is equal to 120, so the angle of the base is equal to 60

The upper bottom of an isosceles trapezoid is 6cm, the lower bottom is twice as much as the upper bottom, and the waist length is 10cm. What is the circumference of this trapezoid

The bottom of an isosceles trapezoid is 6 cm,
The bottom is twice as much as the upper one: 6 × 6 + 6 = 18 cm
One waist length is 10 cm, two waist length is 10 × 2 = 20 cm,
Circumference: upper bottom + bottom + two waist length = 6 + 18 + 20 = 44cm

Isosceles trapezoid upper bottom for 6 cm, bottom for 10 cm, height for 3 cm, how much waist length?

Radical 13

The circumference of an isosceles trapezoid is 56 cm. The length of its bottom is twice that of its upper bottom. The upper bottom is 2 cm longer than the waist, and its waist length is longer

Let its waist length be x cm
Then its top bottom is (x + 2) cm and its bottom is 2 (x + 2) cm
X + X + (x + 2) + 2 (x + 2) = 56
x+x+x+2+2x+4=56
5x=50
x=10
So x + 2 = 12
2(x+2)=24
A: its waist length is 10 cm, its upper bottom is 12 cm, and its bottom is 24 cm

The circumference of two identical isosceles trapezoid is 19 cm, and the circumference of a parallelogram is 32 cm. How much is the waist length of isosceles trapezoid

After the quadrilateral is made up, the circumference is reduced by 2 waist
Waist length = (19 * 2-32) / 2 = 3
The waist length is 3 cm

An isosceles trapezoid has a circumference of 48CM, an area of 96cm, and a height of 8cm. What is the waist length Urgent, it will be closed in 80 minutes!

Because the area is 96 square centimeters and the height is 8 centimeters
So the bottom + bottom = 2 × 96 △ 8 = 24
So the waist is (48-24) × 2 = 12

If an angle of an isosceles trapezoid is 120 ° and its two bottoms are 10 and 30 respectively, then its waist length is If the circumference of isosceles trapezoid is 80 cm, the height is 12 cm, and the median line length is equal to the waist length, then its area is cm2．

As shown in the figure: in the isosceles trapezoid ABCD, ∠ bad = 120 °, ad = 10, BC = 30,
Pass through point a as AE ⊥ BC at point E,
∵AD∥C，∠BAD=120°，
∴∠B=60°，
∵AD=10，BC=30，
∴BE=BC−AD
2=30−10
2=10，
∴AB=BE
cosB=10
One
2=20；
If the median line length of isosceles trapezoid is x, then the waist length is X,
∵ the sum of the top and bottom is 2x,
The circumference of isosceles trapezoid is 2x + X + x = 80, and the solution is x = 20,
The area of this trapezoid is 20 × 12 = 240cm2

An isosceles trapezoid has an internal angle of 120 ° and two bottoms of 10 and 30

To cut an isosceles trapezoid into two congruent triangles and a rectangle
Waist length 20

If the upper and lower angles of the isosceles trapezoid are 120 ° and 60 ° respectively, the length of the upper bottom is 2 and the waist length is 4, then the bottom length is 6? Why six?

The two right triangles are congruent when the two vertices of the upper base are made high. When the base angle is 60 degrees, the top angle is 30 degrees. Then the opposite side = half of the hypotenuse is 2. Therefore, the bottom consists of three 2's, and the result is 6

If the waist length of isosceles trapezoid is 2cm, the bottom length is 5cm, and the base angle is 120, then the circumference of isosceles trapezoid is

There are two situations
1、 The upper bottom is 5cm, and the lower bottom is 5 + 2 * 2 * 1 / 2 = 7cm
The circumference of isosceles trapezoid = 2 + 2 + 5 + 7 = 16cm
2、 The bottom is 5cm and the upper bottom is 3cm
The circumference of isosceles trapezoid is 2 + 2 + 5 + 3 = 12cm

Isosceles trapezoid's upper, lower bottom and waist length are 4cm, 10cm, 6cm respectively. How many upper and lower corners should be reminded