angle. Find all angles in
(d) In a triangle the first angle is greater than the second angle by 18° and less than th
the third by 10%. Express all the angles in degrees.
The sum of two angles is 99° and their difference is 10%. Find the angles in degree



Answer :

In a triangle where the first angle is greater than the second angle by 18° and less than the third angle by 10%, we can set up the following relationships: 1. Let the second angle be x degrees. 2. The first angle is then x + 18 degrees. 3. The third angle is x + 0.10x = 1.10x degrees. Since the sum of the three angles in a triangle is always 180 degrees, we can write the equation: x + (x + 18) + 1.10x = 180 Solving this equation will give us the values of x, x + 18, and 1.10x which represent the angles in the triangle. For the second part of the question where the sum of two angles is 99 degrees and their difference is 10%, we can set up the following relationships: 1. Let one angle be x degrees. 2. The other angle is then 99 - x degrees. 3. The difference between the two angles is 0.10 times their sum, so we have the equation: 0.10(99) = |x - (99 - x)| Solving this equation will give us the values of x and 99 - x which represent the two angles with the given conditions.