Question

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

Answer 1

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

Explanation: