The first one is all squares are rectangles and the second one is not all parallelograms are rectangles.
Answer:
a
Step-by-step explanation:
it's a right triangle so we can use the pythagorean theorem to find h
pythagorean theorem: a^2+b^2=c^2
h^2+19^2=21^2
h^2+361=441
h^2=80
h≈ 8.9ft
Area of the red paper = 90 in²
Area of the blue paper = 12 x 9 = 108 in²
108 - 90 = 18 in²
Ans: The blue paper is larger by 18 in².
Answer:
24
Step-by-step explanation:
Find the number that 9 multiplies by to get 54
so
9x6=54
do the same to four
4x6=24
Or
cross multiply
Lets put N as the missing number
4x54=9xN
Solve
216=9N
24=N
