The length of the base of an isosceles triangle is 5cm, and the middle line of a waist is divided into two parts. The difference between the two parts is 2cm A. 7cm b.3cm c.7cmor3cm D

The length of the base of an isosceles triangle is 5cm, and the middle line of a waist is divided into two parts. The difference between the two parts is 2cm A. 7cm b.3cm c.7cmor3cm D

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The hypotenuse of isosceles triangle ABC is 5cm long
Finding the length of oblique side and the area of isosceles triangle ABC
Yes, just tell me the answer

Is it an isosceles right triangle? Otherwise it can't be found. Area = 1 / 2 * (5 * cos45) ^ 2 = 25 / 4. This is. Hypotenuse = 5

If the two sides of an isosceles triangle are 4cm and 5cm respectively, the perimeter of the isosceles triangle is - and the area is - (in two cases)

The first type: 13,5 / 4 root 39
The second kind: 14,2 times root number 21

Draw an isosceles trapezoid, make its top and bottom length 5cm, 11cm and height 4cm respectively, and calculate the perimeter and area of the isosceles trapezoid

As shown in the figure, CD = 5, ab = 11, de = 4 ∵ AB = 11, CD = 5 ∵ AE = BF = 3 ∵ de = 4 ∵ ad = 5 ∵ perimeter = 5 + 11 + 5 + 5 = 26, area = (5 + 11) × 4 △ 2 = 32