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It is known that the circumference of RT △ ABC is 4 + 2 3, the length of hypotenuse AB is 2 3. Find the area of RT △ ABC
The circumference of ABC is 4 + 2
3, the length of hypotenuse AB is 2
3，
∴AC+BC=4；
According to Pythagorean theorem, ac2 + BC2 = AB2,
∴AC•BC=(AC+BC)2
2=(AC+BC)2−(AC2+BC2)
2=2，
∴SRt△ABC=1
The area of RT △ ABC is 1
A right triangle with a base length of 3.9 meters and a height of 4.6 meters
According to the Pythagorean theorem, the length of the slanted side = √ (3.9? + 4.6?) ≈ 6.037. According to the trigonometric function, the angle of two angles can be deduced. Sina = 3.9 / 6.037 ≈ 0.646, about 40.3 ° and the angle of the other angle is 90 ° - 40.3 ° = 49.7 °
If the sum of a right angle side and an oblique side of a right triangle is a constant, find the right triangle with the largest area Speed... Urgent
Isosceles right triangle, because this right angle side product is biggest!
It is known that the length ratio of three sides of a right triangle is 3:4:5, and the longest side is 25 cm. What is the area of this triangle?
25/5=5
4*5=20
3*5=15
20*15=300
300/2=150
The lengths of the three sides of a right triangle are 30cm, 40cm and 50cm respectively. What is the area of the triangle? What is the height of the hypotenuse of the triangle?
Area: (30x40) / 2 = 600
Height: (30x40) / 50 = 24
The three sides of a right triangle are ABC and are integers a Math homework help users 2016-12-11 report Use this app to check the operation efficiently and accurately!
Because a
If the hypotenuse length of right triangle ABC is 13 and its area is 30, what is the length of two right angles
A right triangle has 5,12 sides, 13 hypotenuse, and 30 area. These should be remembered as common sense. There are many similar examples. When you know the hypotenuse, you can know the length of the two right angles
In the right triangle ABC, ∠ C = 90 °, the height CD on the hypotenuse is a, and the area s is an integer If (s-1) / 3 > A + 214-s > 1-2a (3a-2) / 2 = (4a-1) / 3, then: (1) find the values of a and S; (2) find the length of the center line cm on the hypotenuse
(S-1)/3>a+2 s>3a+7=3*4+7=19
14-S>1-2a 13+2a>s 13+2*4=21>s
(3a-2)/2=(4a-1)/3 a=4
21 > s > 19 s is the integer 20
Bevel = s / A * 2 = 20 / 4 * 2 = 10
Center line on bevel cm = 1 / 2 * bevel = 5
Three sides of a right triangle are three consecutive natural numbers. The area of this right triangle is
Let the length of one side X be x + 1, X-1 on each side. According to Pythagorean theorem, x = 4. The area of triangle: 3 * 4 / 2 = 6
Try three consecutive natural numbers on three sides of a right triangle. The area of this right triangle is? The title of Shangbei Normal University It's lightweight
Let the natural number in the middle be n, which can be simplified from (n-1) 2 + N 2 = (n + 1) 2 in the title to get n? - 4N = 0, n * (n-4) = 0, n = 4 or n = 0 (omit), so the three natural numbers are 3,4,5. The area is half * 3 * 4 = 6
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