it should be 169
Two angles that are equal are called "congruent angles." This means that they have the same measure in degrees or radians. In geometric terms, if angle A is equal to angle B, then we can say that angle A is congruent to angle B, often denoted as ∠A ≅ ∠B.
To determine the measure of angle A that will make a quadrilateral a parallelogram, you need to ensure that opposite angles are equal. Therefore, if angle A is known, angle C (the opposite angle) must also be equal to angle A. Additionally, the sum of adjacent angles should equal 180 degrees; thus, if angle B is known, angle D must be 180 degrees minus angle B.
The exterior angle of a triangle is equal to the sum of the two opposite interior angles. So if a triangle had points A, B and C: The exterior angle at B would equal the sum of interior angles at A and C. Similarly, the exterior angle at C would equal the sum of interior angles at A and B And the the exterior angle at A would equal the sum of interior angles at C and B.
Yes, since a+b=90, a and b being the two angles, and an acute angle is less than ninety, it is impossible for an angle to be greater or equal to ninety. Thats why.
the sine rule, angle (a) and opposite length is eaqual to angle (b) and opposite length. which are also equal to angle (c) and opposite length. Sin A = Sin B = Sin C ------- -------- ---------- a -------- b -------- c
180o - 11o = 169o =====
Draw angle C and bisect it into A & B.
Two angles that are equal are called "congruent angles." This means that they have the same measure in degrees or radians. In geometric terms, if angle A is equal to angle B, then we can say that angle A is congruent to angle B, often denoted as ∠A ≅ ∠B.
In an isosceles triangle there are two equal sides and two equal angles. In a triangle ABC, if angle A is between the sides of equal length, then angles B and C are equal.Without knowing which angle (A, B or C above) is 66o there are two possible answers:If the 66o angle is between the two sides of equal length (angle A) then the other two angles (B and C) are (180o - 66o) / 2 = 57o each.If the 66o angle is not between the sides of equal length (angle B or C), then the other two angles are 66o (the other angle of C and B) and (angle A) 180o - 66o x 2 = 48o.
Angle b is acute angle, if any angle less than 90 degrees then it is called acute angle if more than 90 degrees then it is obtuse angle if it is equal to 90 degrees then it is right angled
Alternate angles are equal and so angle b is also 105 degrees
The exterior angle of a triangle is equal to the sum of the two opposite interior angles. So if a triangle had points A, B and C: The exterior angle at B would equal the sum of interior angles at A and C. Similarly, the exterior angle at C would equal the sum of interior angles at A and B And the the exterior angle at A would equal the sum of interior angles at C and B.
measure of exterior angle of triangle is equal to sum of interior angles. for eg. In triangle ABC, angle C is exterior angle angle A and angle B are interior angles so, C=A+B
for a+ NEVERIn a parallelogram opposite angles are equal. Thus angle c = angle a = 40o.The sum of all the angles in a quadrilateral is 360o, so:angle a + angle b + angle c + angle d = 360o=> 40o + angle b + 40o + angle d = 360o=> angle b + angle d = 280o.
Yes, since a+b=90, a and b being the two angles, and an acute angle is less than ninety, it is impossible for an angle to be greater or equal to ninety. Thats why.
the sine rule, angle (a) and opposite length is eaqual to angle (b) and opposite length. which are also equal to angle (c) and opposite length. Sin A = Sin B = Sin C ------- -------- ---------- a -------- b -------- c
Lets assume that the first angle is A and the second angle is B. These two angles are complementary so their sum is 90. So if angle A is equal to 35, then this can be plugged into an algebraic formula: A + B = 90 (35) + B = 90 B = 55 The measure of the second angle is 55o