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How do you find the measurement of an angle in a triangle without a protractor?
Wiki User
∙ 13y ago
Measure the three sides using a ruler. Then use the Cosine Rule.
If the sides are a, b and c cms, then to calculate angle C, the cosine rule is
c2 = a2 + b2 - 2abCos(C)
So, calculate [a2 + b2 - c2]/2ab
and then calculate cos-1 of the result.
Wiki User
∙ 13y ago
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What type of angle is the largest in a triangle?
the obtuse angle is the largest angle in a triangle. It spreads from 91 to 179 on a protractor
How do you make an angle without a protractor?
You don't always need a protractor to make an angle, just use a normal ruler.
How do you draw a 75 degree angle without a compass?
Use a protractor.
How do you know a triangle is a right triangle?
It has one right angle (90 degrees). If you don't have a protractor handy, just use the corner of any piece of paper
How do you measure angles with a protractor?
A protractor is a shape: semi-circle or full circle, that has degrees marked around the edge. Place the marked centre of the protractor on (for example) the corner of two lines forming a right-angle. The bottom line will be zero, while the vertical line will cross the 90 degrees mark of the protractor, so proving that a right-angle is 90 degrees.
How do you figure the angle of a triangle?
Get a...PROTRACTOR!
How do you determine the measurement of an angle?
by using a protractor
How can you measure the angle of a triangle with a protractor?
magic
How do you measure angle in a triangle?
Use a protractor.
How do you measure a top angle of a triangle?
With a protractor
How do you find a 30 degree angle without a protractor?
It is easy to draw an equilateral triangle without a protractor. That gives a 60 degree angle. It is then simply a matter of bisecting the 60 degree angle, using an unmarked rule and compass, to get a 30 degree angle.
What type of angle is the largest in a triangle?
the obtuse angle is the largest angle in a triangle. It spreads from 91 to 179 on a protractor
How do you find the first angle and the second angle of a triangle?
use a protractor
How do you work out an angle size in a triangle?
Measure it with a protractor.
How do you find the unknown angle measurement of an object?
Use a protractor.
What is the unit measured by a protractor?
A protractor measures the angle between two lines meeting at a point called a vertex. The angle measurement is in degrees.
How do you find the side of a triangle?
To find the degree of angle of a side of a triangle, a protractor is needed to measure the angle. Place the '0' on the protractor on the point of the angle and look at the top part to determine degree of angle. To measure the length of a triangle side, a simple ruler can be used to measure the length.
