First you need to know that the internal angles of a triangle always equals 180°. Therefore:

15+45= 90°

Then since the angles should equal 180, you do:

180-90=90

So the missing angle equals 90°

6 0

4 years ago

Read 2 more answers

For the following right triangle find the side length x round your answer to the nearest hundredth

pashok25 [27]

Answer:

x ≈ 12.96

Step-by-step explanation:

Using Pythagoras' identity in the right triangle

x² + 11² = 17²

x² + 121 = 289 ( subtract 121 from both sides )

x² = 168 ( take the square root of both sides )

x = $\sqrt{168}$ ≈ 12.96 ( to the nearest hundredth )

3 0

3 years ago

What is 4.898979486 rounded to the nearest 10?

Ahat [919]

I believe is 4.9. I hope that helps

7 0

3 years ago