7.79cm It is an equilateral triangle so it has 3 equal sides. That means each side is 9cm. <span>
Now draw a line from the top of the equilateral triangle to the base, and dividing it into two. You will have made two smaller triangles, with sides 9, 4.5, and h (the one you want to find).
A line drawn from the apex of an equilateral triangle to the midpoint of the base is perpendicular to the base, so you can use Pythagoras' Theorem!
4.5^2 + h^2 = 9^2
h = sqrt(9^2 - 4.5^2)
Therefore, the height is 7.79cm (2 decimal places)</span><span>
</span>
Answer: 120 feets
Step-by-step explanation:
Answer:
C
Step-by-step explanation:
Answer:
2: Ribosomes, endoplasmic reticulum, lysosomes, centrioles, and Golgi bodies.
3: Scanning Electron Microscope and Transmission Electron Microscope.
4: Aeronautics, automotive, apparel, and pharmaceutical industries.
5: The sample cannot be live since the preparation process kills the sample.
6: SEM views the image by reflecting electrons, creating a 3d image of the outside, while a TEM makes electrons go through the sample and scans the incoming electrons from the other side, creating a high quality, 2d image of the insides of the sample.
