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What is the approximate length of the base of an isosceles triangle if the congruent sides are 3 feet and the vertex angle is 35 degress?
The median of an isosceles triangle from its apex is also the perpendicular bisector of the base. This line divides the triangle into two congruent right angled triangles whose hypotenuse is 3 feet and whose apical angle is 35/2 = 17.5 degrees.
If the base of the original triangle was 2b cm then
sin(17.5) = b/3 so that b = 3*sin(17.5) = 0.9cm so that the base was 2b = 1.8 feet
Alternatively, you could use the sine rule on the triangle:
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How many sides does a regular polygon have if the measure of each interior angle is equal to 172 degress?
How many sides does a regular polygon have if the measure of each interior angle is equal to 172 degress ?
How many degress does a dodecagon have?
The interior angles of a dodecagon sum to 1800 degrees.
A ladder leans against a wall making an angle of 73 degress with the ground The ladder's base is 1.17m away from the wall Determine the length of the ladder?
Providing that the ground is level and that the wall is straight, you have the outline of a right angled triangle with an adjacent angle of 73 degrees and an adjacent length of 1.17 metres. In order to find the length of the hypotenuse (which is the ladder itself) we use the cosine ratio: cosine = adjacent/hypotenuse Which when rearranged is: hypotenuse = adjacent/cosine hypotenuse = 1.17/cosine73 degrees = 4.001755235 So the length of the ladder is 4 metres correct to one significant figure.
What if the measure of the third angle of an triangle if one angle is 45 degrees and the other is 93 degress?
Since the sum of all three angles is 180 degrees, the third angle is 180 - 45 - 93 =Since the sum of all three angles is 180 degrees, the third angle is 180 - 45 - 93 =Since the sum of all three angles is 180 degrees, the third angle is 180 - 45 - 93 =Since the sum of all three angles is 180 degrees, the third angle is 180 - 45 - 93 =
What type of angle measures 330 degrees?
If you think of two lines creating an angle of 30 degress. such as a slice of pie, the angle from the outside of one line around to the outside of the other line, or where the rest of the pie would be would be 330 degrees. If you understand that and are just lookin for the tern used for 330 degrees this is REFLEX. A reflex angle is from 180 degrees to 360 degrees. with angles <90degrees being ACUTE and angles >90 degrees <180 degrees called OBTUSE
