Just look at the perpendicular cross section, which would be an isosceles triangle. Split that in half vertically and you get a right triangle.
Answer:
D) 140
Step-by-step explanation:
If you are using a calculator, simply enter 35 × 100 ÷ 25, which will give you the answer.
Scale factor = XY/UV = YZ/VW = XZ/WV
Scale factor = 21/3 = 28/4 = 14/2
Scale factor = 7
It would be lines that are plane and line