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Goryan [66]
3 years ago
9

I have been stuck on this question for a while(NO SPAMMING IT IS ANNOYING)The formula used to find the area of a circle is πr² (

π=pi). What is the area of a circle with a diameter of 16cm? Use pi = 3.14
Mathematics
1 answer:
RoseWind [281]3 years ago
3 0

Answer:

200.96

or

201 (if you round it up)

Step-by-step explanation:

1) Well, if we know that the diameter (D) is 16 cm, then we know that the radius (r) is 8 cm (D = 2 * r).

2) Next, we square (^2) the radius, and we get 64 (r^2 = r * r = 8*8 = 64)

3) Finally, we multiply π by 64, and we get 200.96 cm^2 (3.14 * 64) which is very close to 201 cm^2.

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a carpenter uses a circular saw to cut a piece of lumber at a 145 angle what is the measure of the other angle formed by the cut
Anettt [7]

The other angle would be 35 degrees. This is because in a straight line (the wood) there are 180 degrees and when you take away 145 (the cut) you are left with 35.

180-145= 35

I hope this helps!

8 0
3 years ago
Find the total lateral area of the following
maxonik [38]

Answer:

15π cm²

Step-by-step explanation:

The total lateral area of a cone

= πr√h² + r²

= √h² + r² = l

h = Height = 4cm

r = radius = 3cm

Hence:

= π × 3 √4² + 3²

= 3π × √16 + 9

= 3π × √25

= 3π × 5

= 15π cm²

7 0
2 years ago
The Jones family traveled 314 miles each day until they reached their destination, which is 1,256 miles away from their starting
Flura [38]
It took them 4 days until they arrived at their destination.

314 × 4 = 1256

Another way of solving it:

Total amount of miles ÷ miles per day = The amount of days.

1256 ÷ 314 = 4
3 0
3 years ago
Read 2 more answers
Anyone know this, if you do plz help me. If the octagon is cm wide what is the area?
DENIUS [597]

Answer:

92

Step-by-step explanation:

Corner triangle: 1/2 (2 x 2) = 2

4 triangles = 4 x 2 = 8

Octagon + 4 triangles forms a square: 10 x 10 = 100

Octagon: 100 - 8 = 92

3 0
3 years ago
Please help! I don't understand this.​
nydimaria [60]

Answer:

1) 7

2) 49

3) 56

4) 9

5) 91

Step-by-step explanation:

For the day blanks, you just multiply the number of weeks by 7.

For the week blank, you divide 63 by 7

3 0
2 years ago
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