Given that the angle between the hypotenuse and the base of a right triangle is 60 degrees and the height is 1.8 meters, what is the length of the bottom edge?

Given that the angle between the hypotenuse and the base of a right triangle is 60 degrees and the height is 1.8 meters, what is the length of the bottom edge?

Tan60: = opposite / adjacent = high / bottom
The bottom edge = height / tan60 °
=1.8÷√3
≈ 1.039230485 (m)

The two waists of a right triangle are 1 meter. Find the length of the bottom edge

Pythagorean theorem for right triangle
The sum of the squares of the two right angles is the square of the hypotenuse
So the hypotenuse is equal to root 2

How to find the length of the hypotenuse when we know the length of the base and the angle between the hypotenuse and the base of a right triangle

In a right triangle,
Cos α = bottom length / bevel length
Therefore, the length of beveled edge = length of bottom edge / cos α

A right triangle with a known base length of 10 meters. Find the degree of the angle between the base and the hypotenuse. Please tell us the formula and calculation method,

The length of the bottom edge is determined by Pythagorean theorem = √ 100 + 4
Suppose the angle is a
tan a = 2/10
a=arctan0.2

How many different triangles can you place with 10 or 17 matches? Set the length of each match to be 1. How many kinds of 10 pieces? How many kinds of 17 pieces? Very urgent

There are 2, 4, 4 and 3, 3, 4, respectively
There are 8 kinds of them, 188278368377458467557566

How many triangles can you make with 11 matchsticks of the same length? Please write the exploration process (the circumference of each triangle is equal to the total length of 11 matchsticks)

1,5,5
2,4,5
3,4,4
3,3,5
Four, (the sum of the two sides of the triangle is greater than the third side, and the difference between the two sides is only less than the third side. Start with 1, and it's OK)

Use matchsticks to make patterns in the following way: 7 No. 1, 12 No. 2, 17 No. 3 How many matchsticks are in the nth figure How many matchsticks are in the 100th figure

From the observation, it can be concluded that this rule is an arithmetic sequence with tolerance of 5
an=7+5(n-1)=5n+2
a100=5*100+2
=502

How to understand an equilateral triangle with seven matchsticks of the same length

Seven matches put "one" "equilateral triangle" (△)
Tip: This is a brain teaser
Answer: use seven matches and put it into "one delta"
Note: one (1 match) (3 matches) △ (3 matches)

How many different triangles can be made with 7 matches of the same length connected in sequence?

Assuming that the length of each match is 1, the sum of the three sides of the triangle is 7, and the length of the three sides can be:
1 1 5
1 2 4
1 3 3
2 2 3
So you can put it in four different triangles

If the length ratio of the two right sides of a right triangle is 5:12, and the length of the hypotenuse is 130 cm, then the area of the triangle is

5, 12, 13 are the common proportion in the right triangle line. Remember, so, you can know that the two sides are 50 and 120 respectively, so the face is 6000