Answer:
1. 3-4-5 method
2. Rope method
3. Optical square method
Step-by-step explanation:
1. You'll need a measuring tape, two range poles, pegs, and three people.
The first person holds the zero mark between their thumbs and fingers, the second person holds the 3m mark on the tape between their thumbs and fingers, and the third person holds the 8m. When all sides of the rope are stretched, a triangle is created, and an angle near one is a right angle.
2. Wrap one loop of the rope around peg A with a peg through the other loop, draw a circle on the ground, place pegs B and C where the circle crosses the base line, and place peg D half way between pegs B and C, allowing pegs D and A to form lines perpendicular to the base line, forming a right angle.
3. Single and double prismatic squares are basic devices used to measure correct angles.
Answer
The answer is x=5
Step-by-step explanation:
17x-3-x-9=68
Okay so first you need to combine similar terms.
So -3-9=-12
17x-x=16x
So then you get 16x-12=68
Add 12 on both sides
then you get 16x= 80
Divide by 16 on both sides
80/16=5
so then you get
x=5
X=the shortest leg
X+1= the longest leg
X+9=the hypotenuse.
Apply the Pythagorean theorem(a^2+b^2=c^2):
X^2 + (x+1)^2 = (x+9)^2
The sides=
20, 21, and 29
Answer:
All simplified
Step-by-step explanation:
10 - 4 + 2
6+2
8
Answer:
n = 13
Step-by-step explanation:
1. (9n-8) and (6n-7) combined equal 180 degrees, and we can translate that into an equation and then solve it: 
2. (Solving)
Step 1: Simplify both sides of the equation.
Step 2: Add 15 to both sides.
Step 3: Divide both sides by 15.
Therefore, n = 13.
