Answer:
3
Step-by-step explanation:
ok first multiply 6 and 4 it becomes 24 then we divide 24 with 8.
Answer:
Instead of 16 write 36
Step-by-step explanation:
when we see this carefully 4/6= 24/16
This is an equivalent fraction
when we multiply 4×6 we get 24 so we must multiply 6 with 6 . so the answer is 36.
Answer:
D: (-2,1)
Step-by-step explanation:
Answer:
remaining cardboard area = 122.5πr²
Step-by-step explanation:
area of original rectangle = length * width
= 18r * 8r
= 144r²
- area of semi circle: πr²
Here we have 3 semi circles with radius 3r:
- area of 3 semi circles: 3( * π * (3r)²)
: 3( * π * 9r²)
: 13.5πr²
- area of one semi circle with radius 4r:
( * π * (4r)²)
( * π * 16r²)
8πr²
- So the area of remaining cardboard:
area of rectangle - area of 4 semi circles
144r² - 13.5πr² - 8πr²
122.5πr²
We know
Now
- New Radius=2(4)=8cm
- New Height=2(8)=16cm
So
Hence our correct option is Option C