Because the number in decimal form has a different value based on their position from the decimal point. Every one number left of decimal point it will be valued 10 times. If you don't line them up you can compare them because they might have a different value and you will end up messing your calculation.
(1)
- Law of sines to solve for
:
- The sum of the measures of interior angles of any triangle is
. Use this to solve for
:
- Law of cosines to solve for
:
(2)
- Sum of interior angles:
- Law of sines to solve for
:
(3)
- Sum of interior angles:
- Law of sines to solve for
and
:
Don't forget to provide units for the side lengths solved for above!
The image contains two geometric objects, square and triangle
The square
The square has side equals to 12 cm
Find the area of the square
a = s × s
a = 12 × 12
a = 144 cm²
The triangle
The triangle has base equals to 12 cm, and the height equals to 17 - 12 = 5 cm
Find the area of the triangle
a = 1/2 × b × h
a = 1/2 × 12 × 5
a = 1/2 × 60
a = 30 cm²
Now add the area together
a = area of triangle + area of square
a = 144 + 30
a = 174
Answer:
The area is 174 cm²
Point slope form:
P(x₀,y₀)
slope=m
y-y₀=m(x-x₀)
1)
y-2=-3(x+6)
P(-6,2)
m=-3.
2)
y-5=7(x-14)
P(14,5)
m=7
3)
y+3.7=3.2(x-1.7)
P(1.7 , -3.7)
m=3.2
4)
y+1=11(x-1)
P(1 , -1).
m=11
5)
y+6=-4(x-8)
P(8 , -6)
m=-4
6)
y-7=4(x+3)
P(-3,7)
m=4