Please I beg of y'all someone who is good with math- Please help- 1 : The area of a circle is 25π. What is the circumference of that circle? Use 3.14 for π. Do not label your answer

2 : The area of a triangle is 45 cm2. The triangle was dilated. The new image has an area of 20 cm2. What is the scale factor? If the answer is not a whole number, enter it as a fraction, not a decimal.

3 : Which tank has the greater volume?

Tank A has a diameter of 10 ft and a height of 3 ft. Tank B has a diameter of 6 ft and a height of 8 ft

1,Area = πr² Circumference = 2 πr So first we solve for r from area: 25 π = πr² 25 = r² r = 5 So we know that radius is 5 cm. Now substitute r to 5 in circumference formula: C = 2π(5) = 10π

2.126 cm2

3. Tank a

Step-by-step explanation:

(2x + 16) + (x) = 180

step-by-step explanation:

given,

abcd is a quadrilateral inscribed in a circle

angle a is labeled x plus 16, (x + 16)

angle b is labeled x degrees, (x)

angle c is labeled 6x minus 4, (6x – 4)

angle d is labeled 2x plus 16, (2x + 16)

what equation can be used to solve for angle b?

we know that the sum of the opposite angles of a simple quadrilateral inscribed in a circle is 180 degrees.

angle b is opposite angle d

therefore, angle b + angle d = 180

(x) + (2x + 16) = 180 

same as (2x + 16) + (x) = 180

answer: 0.1,0.85

step-by-step explanation: