Thursday, September 23, 2010

90 degree angle

In this blog we are going tio discuss about one geometry concept 90 degree angle.Also if you want to know  triangle angles than you can check out this link triangle angles.
90 degree angle is said to be the standpoint between two lawful lines which are rectangular to apiece else. The sum of two angles which is tied to 90 degree, then the angles are titled interchangeable weight. The 90 degree angle is denoted as the symbolization '' L''. Thus the seek between two individual horizontal pedigree and plumb line is 90 state. In this article, we excogitate most how to hooking 90 degree angle.
Before giving the example on 90 degree angle, see the given link if you are weak in English subject  Basic English.you will get lots of help from there in english .
Here is the example of 90 degree angle solved problems:
Find the hypotenuse length in 90 degree angle triangle whose angle θ = 30 degree and the length of opposite side is 10cm.
Solution:
Given: Sin 30 = 0.5
Opposite side = 10cm
To find: Hypotenuse
Formula: sinθ = opposite side /hypotenuse
Hypotenuse = opposite side/sin θ
Hypotenuse = 10/0.5 = 20cm
Answer: hypotenuse = 20cm
Next time we will see more solved example on this concept.

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