Find a Side when we know another Side and Angle. We can find an unknown side in a right-angled triangle when we know: one length, and; one angle (apart from the right angleâ€¦... First we use Pythagoras to calculate the length of the hypotenuse, c. c 2 = 10 2 + 7 2 = 149, Then c â‰ˆ 12.2 cm Next we use one of the above ratios to calculate a .

If the angle is greater than 180 degrees then the arc length described is greater than the arc length of a semi-circle (Click here for illustration). The Millimeter unit (mm) has been added to the choice of length units to use.... Find a Side when we know another Side and Angle. We can find an unknown side in a right-angled triangle when we know: one length, and; one angle (apart from the right angleâ€¦

First we use Pythagoras to calculate the length of the hypotenuse, c. c 2 = 10 2 + 7 2 = 149, Then c â‰ˆ 12.2 cm Next we use one of the above ratios to calculate a .... Using the Law of Sines to Find an Unknown Side The Law of Sines states: Remember that a stands for the side across from angle A, b is the side across from angle B, and c is the side across from angle C.

Find a Side when we know another Side and Angle. We can find an unknown side in a right-angled triangle when we know: one length, and; one angle (apart from the right angleâ€¦... Find a Side when we know another Side and Angle. We can find an unknown side in a right-angled triangle when we know: one length, and; one angle (apart from the right angleâ€¦

## How To Find Length Using Angle

## How To Find Length Using Angle

### If the angle is greater than 180 degrees then the arc length described is greater than the arc length of a semi-circle (Click here for illustration). The Millimeter unit (mm) has been added to the choice of length units to use.

- First we use Pythagoras to calculate the length of the hypotenuse, c. c 2 = 10 2 + 7 2 = 149, Then c â‰ˆ 12.2 cm Next we use one of the above ratios to calculate a .
- If the angle is greater than 180 degrees then the arc length described is greater than the arc length of a semi-circle (Click here for illustration). The Millimeter unit (mm) has been added to the choice of length units to use.
- If the angle is greater than 180 degrees then the arc length described is greater than the arc length of a semi-circle (Click here for illustration). The Millimeter unit (mm) has been added to the choice of length units to use.

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