In an isosceles triangle with a circumference of 10 cm, the length of the bottom edge is x (CM), and the length of the waist is y (CM). Write out the analytic expression of the function of Y with respect to X and the definition domain of the function

In an isosceles triangle with a circumference of 10 cm, the length of the bottom edge is x (CM), and the length of the waist is y (CM). Write out the analytic expression of the function of Y with respect to X and the definition domain of the function

An isosceles triangle has two waists, that is, 2Y, and a bottom edge X. 2Y + x = perimeter, that is, 10, y = (10-x) 2, and the domain of definition is 0

In an isosceles triangle with a circumference of 10 cm, the length of the bottom edge is x (CM), and the waist length is y (CM). Write out the analytic expression of the function of Y with respect to X and the domain of definition of odd function

From the equation x + 2Y = 10, we get y = 5-0.5x
If the sum of the two sides of the triangle is greater than the third side, then there is 2Y > X
So there's X

1. As shown in the figure, in the triangle ABC, the angle a = 60 °, BD is perpendicular to AC, the perpendicular foot is D, CE is perpendicular to AB, and the perpendicular foot is e
2. In the parallelogram ABCD, am ⊥ BC, an ⊥ CD, m and N are perpendicular feet, respectively

1. If you can make four points round, it's very simple. It seems that you can't
∵ in △ abd and △ ace

In triangle ABC, D and E are points on AB and AC respectively, and De is parallel to BC. Proof: Triangle ade is similar to triangle ABC

Certification:
Because De is parallel to BC
So angle ABC = angle ade, angle AED = angle ACB
And because of the common angle a
So triangle ade is similar to triangle ABC

The base of the triangle is 52 decimeters long and then extended by 10 decimeters. The area of the triangle is increased by 200 square meters

The bottom of the triangle is extended by 10 decimeters, and the area is increased by 200 square decimeters
Then the height of triangle is 200 × 2 △ 10 = 40DM
Area of original triangle = base × height △ 2
=52×40÷2
=1040 square decimeters

The bottom of a triangle is 10 decimeters, the height is 4 decimeters, how many square decimeters is its area

20

The area of a triangle is 14.5 square centimeters. The bottom and height of the triangle are two prime numbers in centimeters. How many centimeters are the bottom and height of the triangle?
I know the answer to this question: bottom: 7cm high: 5cm or bottom: 5cm high: 7cm is no process

5*19=145

The two right sides of a right triangle are two prime numbers, and their sum is 8 decimeters. Find the area of the triangle

There are two cases: the length of one right side is 1dm, the length of the other side is 7dm, and the triangle area is 3.5dm
When the length of a right angle is 5DM and the length of the other side is 3DM, the area of the triangle is 7.5dm

There is a right triangle. The lengths of the two right sides are two different primes. The sum of them is 14 cm. What is the square area of this triangle

3 + 11 = 14 cm
The length of the two right angles is 3 cm and 11 cm respectively
The area of this triangle is 3 * 11 △ 2 = 11.5 square centimeters

There is a right triangle. The sum of the two prime numbers of the two right sides is 20 cm. What is the area of the right triangle?

3+17=20 13+7=20
The lengths of the two right angles are 3 and 17 or 7 and 13
So the area of this right triangle is:
3*17/2=25.5
or
7*13/2=45.5