(180°-x) + (90°-x) = 240°270° - 2x = 240°30° = 2x15° = xThe measure of the angle is 15°.The supplement is 165°, the complement is 75°, and their sum is 240°.
If you're referring to the internal angles of a triangle - the missing angle would be 30 degrees. Remember - in a flat triangle - the internal angles always add up to 180. Therefore - add up the angles you know, then subtract that from 180.
It is not a proportion. There needs to be aroubd a 75 degree angle from the ground to the base. If it is too flat the ladder can slip out from underneath you. If it is too steep you can tip back. There is usually an angle at the bottom of the ladder if that is flat on the ground then that should be the safest angle (75 degrees)
you have two unknowns: angle one (which we can call x), and angle 2 (which we can call y)when you have 2 unknowns, you need to set up 2 equationssince they are complimentary, you know that 90 = x + ywe know that the second is 5 times the first, so x = 5yif we substitute 5y for x in the first equation, we get: 90 = 5y + y = 6y90/6 = 15. we now know that 15 is the measure of angle 2All we need to do know is 90-15, which equals 75 to get are measure for angle 1
First, draw the triangle ABC. Denote with A and B the two base angles, and with C the obtuse angle. Denote with a the side opposite the angle A, and with b the opposite of the angle B (since these two sides are equal, you can denote both of them with a), and with c the side opposite the angle C (which is also the base of the triangle ABC). Since you know the measure of two sides and the measure of the angle between them, you can use the Law of Cosine to find the measure of the side opposite to that angle. So, c^2 = a^2 + b^2 - 2abcosC a = b = 5 in, measure of the angle C = 120 degrees c^2 = 5^2 + 5^2 - (2)(5)(5)(cos 120 degrees) = 75 c = square root of 75 c = 8. 660254038 Thus the measure length of the base is approximately 8.7 in. (Make sure to put your calculator on degree mode). You can use also the Pythagorean theorem to find the base, by using the property: In a right triangle the side opposite the angle whose measure is 30 degrees, is equal to one half of the measure length of the hypotenuse, but this method is much more longer. Let's do this. From the vertex C, draw the perpendicular CD to the base AB. This perpendicular cuts the base into two congruent parts. In the triangle ACD the hypotenuse AC has a length of 5, so CD, which is opposite the base angle A (an 30 degrees angle) has a length 5/2 = 2.5. From the Pythagorean theorem AD^2 = AC^2 - CD^2 AD^2 = (5)^2 - (2.5)^2 = 25 - 6.25 = 18.75 AD = square root of 18.75 AD is approximately 4.33. Since base AB has a length that equals twice of the length of AD, we can find that the length of AB is 2 x 4.33 = 8.66, or approximately 8.7 in.
The complementary angle is 15 degrees
It is: 15 degrees
It is 15 degrees because complementary angles add up to 90 degrees
An impossibility because complementary angles add up to 90 degrees but if its a supplementary angle then 180-105 = 75 degrees
180-105 = 75
Complementary angles are angles that add up to 90 degrees. If the smaller angle is x, the larger is 5x, so 6x = 90. X equals 15, and the larger angle measures 75 degrees.
The complementary angle is 15 degrees.
It is 75 degrees
180-105 = 75 degrees
It is a right angle triangle and angle A measures 15 degrees.
They are: 75 degrees + 15 degrees = 90 degrees