How tall is the Space Needle? Sure, The Google could tell you in an instant, but let's see what the Circuit Playground says.

First thing is to find a safe location with a good view. This street corner works.

Next we need to know the distance from here to the Space Needle. For this we will ask The Google for help. You can use Google Maps to measure the distance between two locations. Here are the steps used to determine the distance from the Space Needle to the street corner. This can be done for other locations as well.

Now we use our Circuit Playground inclinometer to measure the angle to the top of the Space Needle. Sight in the top through the plastic tube and press either button to take a measurement.

Here is the resulting display on the Circuit Playground. The green light on NeoPixel #9 means the reading is good, the #0, #2, and #5 NeoPixels are lit indicating the angle, and since the #8 NeoPixel is not lit, the value is positive.

Now we can use the worksheet to determine what angle is being indicated. In this case:

**1 + 4 + 32 = 37 degrees**

Then use a calculator to get the tangent of this angle:

**tan (37 deg) = 0.7536**

We determined our distance was 780 feet above, so just need to multiply to get the final answer:

**780 x 0.7536 = 587.808**

Let's just call it **588 feet**.

The actual height of the Space Needle is **605 feet**. So our reading was off by **17 feet**. Oh well, not perfect, but not bad for a plastic straw and some rubber bands.