One example is the idea of two parts of a book that open up. Each flat part is a plane and the two planes intersect along the spine of the book.
Another example would be a wall intersecting with the floor. Both are flat surfaces.
A third example would be a laptop's screen as one plane and the keyboard as the other plane. They intersect at the hinge of the laptop.
For each example, the surface has a finite amount of area and it doesn't extend forever in all four directions. Theoretically, a plane is where the flat surface extends in all four directions infinitely. Though of course, real life has limitations but the idea is still applicable in a way.
Note how for each example, the two planes intersect to form a line. Also, each plane must be flat without bending or curving in any way.
Answer:
the top 2 and the left bottom corner
Step-by-step explanation:
the first one in the first row is a reflection
the second one in the first row is a rotation
the one on the left bottom corner just moved a unit
Answer:
7. m<K = 60
8. m<U = 110
9. m<C = 50
Step-by-step explanation:
Triangles: when all 3 angles all added it should be 180 degrees
7. 60+60+unknown value=180 --> unknown value=180-60-60=60
8. 35+35+unknown value=180 --> unknown value=180-35-35=110
9. 53+77+unknown value=180 --> unknown value=180-53-77=50
7. the wall is 12 the ladder is 15 find the ground
this will make a right angle from the wall and the ground
a^2+b^2=c^2
12^2+b^2=15^2
144+b^2=225
-144 both sides
b^2=81
square root both sides
b=9 ft
8. area of square is s^2
s^2=81
square root both sides s=9cm
diagonal=
a^2+b^2=c^2
9^2+9^2=c^2
81+81=c^2
162=c^2
square root both sides
12.73cm is diagonal
9. a^2+b^2=c^2
a=9
b=12
c=
9^2+12^2=c^2
81+144=c^2
225=c^2
square root both sides
c=15km
Answer:
The first one is m = 2/1
The second one is m = 3/2
The third is m = 3/1
Step-by-step explanation:
Using the slope formula: m = Rise/run = y2 - y1 all over x2 - x1, they should equal the answers I have provided. You can use an two x-values or y-values.
Sorry if I am wrong... I tried... the thought is what counts! :)