When you have -(-2) it equals +2 and the same goes for any other number. When you have +(-2) it equals -2 and the same goes for any other number. Hope this helps!
How many facts does it take to make triangles congruent? Only 3 if they are the right three and the parts are located in the right place.
SAS where 2 sides make up one of the three angles of a triangle. The angle must between the 2 sides.
ASA where the S (side) is common to both the two given angles.
SSS where all three sides of one triangle are the same as all three sides of a second triangle. This one is my favorite. It has no exceptions.
In one very special case, you need only 2 facts, but that case is very special and it really is one of the cases above.
If you are working with a right angle triangle, you can get away with being given the hypotenuse and one of the sides. So you only need 2 facts. It is called the HL theorem. But that is a special case of SSS. The third side can be found from a^2 + b^2 = c^2.
You can also use the two sides making up the right angle but that is a special case of SAS.
Answer
There 6 parts to every triangle: 3 sides and 3 angles. If you show congruency, using any of the 3 facts above, you can conclude that the other 3 parts of the triangle are congruent as well as the three that you have.
Geometry is built on that wonderfully simple premise and it is your introduction to what makes a proof. So it's important that you understand how proving parts of congruent triangles work.
Answer:
a. 2
c. efx = 20 = 2.22
x. 9
b.1/2×20 = 10
Step-by-step explanation:
it is 2 because it has the highest frequency
Answer:
x<6 just letting you know that / is not meant for division it means a fraction bar
Step-by-step explanation:
1. Group all constants on the right side of the inequality
2x+4<16
Subtract from both sides
(2x+4)-4<16-4
Simplify the arithmetic
2x<16-4
Simplify the arithmetic
2x<12
2. Isolate the x
2x<12
Divide both sides by 2
(2x)/2<12/2
Simplify the fraction
x<12/2
Find the greatest common factor of the numerator and denominator
x<6*2/1*2
Factor out and cancel the greatest common factor
x<6
3. Solution on a coordinate plane
Solution: x<6
Interval notation:
(-∞,6)
