Answer:
The diameter is 14π
Step-by-step explanation:
We know the area of a circle is πr^2
let 49π=πr^2
Cancel the π's, and you get 49=r^2
Take the square root and you get r=7
The diameter of a circle is 2πr.
2π(7)=14π.
Given:
Bases of the trapezoid are 5.2 m and 14.6 m.
The height of the trapezoid is 7 m.
To find:
The area of the trapezoid.
Solution:
The area of a trapezoid is:
Where, a,b are bases and h is the height of the trapezoid.
Putting 
in the above formula, we get
Therefore, the area of the trapezoid is 69.3 square meters.
Answer:
The 2nd triangle
Step-by-step explanation:
Answer:
70 cm
Step-by-step explanation:
Given:
The first piece of lumber Jolie finds is labeled as 500 millimeters long, the second piece is labeled as 1 meter long, and the third piece is labeled as 20 centimeters long
.
To find: How many centimeters shorter is the first piece of lumber that Jolie finds than the length of the second and third pieces of lumber combined
Solution:
Length of first piece = 500 mm = 50 cm (As 1 cm = 10 mm)
Length of second piece = 1 m =100 cm (As 1 m =100 cm )
Length of third piece = 20 cm
Sum of length of second and third piece = 100 + 20 =120 cm
So,
Sum of length of second and third piece - Length of first piece = 120 - 50 = 70 cm
Therefore,
the first piece of lumber is shorter than the length of the second and third pieces of lumber combined by 70 cm.
