Ello, I just need three questions answered, that's all. Help much appreciated, thanks:)
1.A rectangle with an area of 4/7 m^2 is dilated by a factor of 7.What is the area of the dilated figure? Do not leave your answer as a fraction.
2.A prism with the base area of 8 cm^2 and a height of 6cm is dilated by a factor of 5/4. What is the volume of the dilated figure?
3.A prism with a volume of 875m^3 is scaled down to a volume of 448cm^3. What is the scale factor? Answer as a fraction or decimal in simplest form.
+128406 1.A rectangle with an area of 4/7 m^2 is dilated by a factor of 7.What is the area of the dilated figure? Do not leave your answer as a fraction.
The area is increased by a square of the scate factor....so.....
(4/7) * 7^2 =
(4/7) * 49
(49/7) * 4 =
7 * 4 =
28 m^2
+128406 2.A prism with the base area of 8 cm^2 and a height of 6cm is dilated by a factor of 5/4. What is the volume of the dilated figure?
The original volume will increase by a cube of the scale factor
Original volume = 8 * 6 = 48cm^3
So
48 * (5/4)^3 =
[48 * 125] / 64 =
[48/64] * 125 =
(3/4) * 125 =
93.75 cm^3
