It is known that the length of the right angle to which the angle of 30 ° in a right triangle is 2 3 cm, then the length of the other right angle side is______ .

∵∠C=90°，∠B=30°，AC=2
3，
∴AB=2AC=4
3，
From Pythagorean theorem, BC is obtained=
AB2−AC2=6，
So the answer is: 6cm

Given that the length of the right angle to which the 30 ° angle of a right triangle is 2cm, the length of the hypotenuse is______ .

∵ the length of the right angle to which the 30 ° angle of a right triangle is opposite is 2cm,
The length of the beveled edge is 2 × 2 = 4cm
So the answer is: 4cm

Right triangle known that the angle between the long right angle side and the oblique side is 20 ° and the short right angle side 5, find the length of the long right angle side!

The short right angle side is the opposite side of the 20 degree angle, and the long right angle side is the adjacent side
Therefore, the short right angle side / the long right angle side = Tan 20
But since 20 degrees is not a special angle, there is no special trigonometric function value
Therefore, the results can only be obtained by looking up tables or calculators

Given that the length of the short right angle side of a right triangle is 3 and the length of the hypotenuse is 5, find the height on the hypotenuse If an (hypotenuse) is 5 and MC (short right angle side) is 3, the height on the hypotenuse is 4. Why? Only know the short right angle side and hypotenuse, don't know any data about am (another right angle side)! Is there a formula for this kind of problem? -1st floor The answer is 4, not 2.4

According to Pythagorean theorem, another right angle side is 4
Let the height on the hypotenuse be X
It can be obtained by using the formula of triangle area
3*4=5x
x=2.4
The height on the bevel is 2.4
If according to your description, the height on the hypotenuse must be 2.4
In addition, 4 is the height on the right side, not the height of the hypotenuse

(1) In a right triangle, if the sum of the two right sides is 17 and the square difference between the two right sides is 119, find the length of the hypotenuse

Right angles are: 12 and 5
Bevel: 13
Because a + B = 17, a ^ 2-B ^ 2 = 119
Then a + B = 17, A-B = 7
Then a = 12, B = 5
Then the hypotenuse = 13

If the hypotenuse of an isosceles right triangle is 2, then its area is______ .

According to Pythagorean theorem, two right angle sides are
2, then the area is 1

If the center lines on the right sides of a right triangle are 5 and 2, respectively, 10, then the length of the oblique side is______ (solution!)

In a right triangle, four times the sum of the squares of the midlines on two right sides is equal to five times the square of the hypotenuse. Therefore, the hypotenuse ^ 2 * 5 = 4 * [5 ^ 2 + 2 root sign 10 ^ 2] = 260, then the hypotenuse = 2 root sign 13. The above is a theorem. It is proved that if three sides are a, B, C, then the two midlines are root numbers a? 2 / 4 + B? Respectively

The angle of a right triangle is 45 ° and the longest side is 10 cm. The area of this triangle is______ .

It can be seen from the figure that the bottom is 10cm, and the height is 10 △ 2 = 5cm,
10×5÷2，
=50÷2，
=25 (square centimeter);
So the answer is: 25 square centimeter

A right triangle knows the length of one side and the angle of an angle

Pythagorean theorem: a? + B? = C
If you know the square of a or B, you can try adding a small number to a or B
If you know the length of C, you can divide it into two numbers larger than yourself

A right triangle, a right angle side length of 18, an angle of 30 degrees to find the length of the oblique angle side

According to the Pythagorean theorem, the side length ratio of a right triangle is 3:4:5, 3 is the length of the side corresponding to the angle of 30 degrees, 4 is the length of the side corresponding to the angle of 60 degrees, and 5 is the length of the side opposite to the angle of 90 degrees (hypotenuse). Now it is known that the side to which the angle of 30 degrees corresponds is 18, that is to increase the original proportion by six times, so the hypotenuse should be 5 times 6 to get 30

It is known that the length of the right angle to which the angle of 30 ° in a right triangle is 2 3 cm, then the length of the other right angle side is______ .