Answer:
4.4mm
Step-by-step explanation:
Circumference of circle
2 Pi r
Diameter of coin = 22mm
Therefore the radius = 11mm
Therfroe the outer edge (circumference)
= 2 Pi r
= 2 x Pi x 11
=69.11mm
For the inner edge
Diameter = 5
Radius = 2.5
Therefroe inner edge (circumference)
= 2 Pi r
= 2 x Pi x 2.5
= 15.7mm
The difference is
69.11 - 15.7
=4.4mm
Answer:
45 square inches
Step-by-step explanation:
We are told that a terrarium is constructed in a triangular prism shape with the following 10 inches tall and 450 cubic inches in volume.
We are asked to calculate the area of the base shape of the prism, we know that the volume of any triangular prism is equal to the area of the base times the height therefore:
450 = W × 10
we solve for A:
A = 450/10
A = 45
Which means that the base area is 45 square inches
1 inch = 2.54 centimeters
1 foot = 12 inch
1 inch = 2.54 cm
12 inch = 12times 2.54 cm = 30.48 cm
Answer 1 foot = 12 inch = 12times 2.54 = 30.48 cm
* we know 1 yard = 3 foot
1 foot = 12 inch
1 inch = 2.54 cm
Answer : so 1 yard = 3 foot = 3* 12 inch = 36 * 2.54 cm =91.44 cm
1 hour/ 1/4 hour=4
1/8 inch x 4=4/8 inch per hour=1/2 inch per hour
1/8 / 1/4=1/2
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