Question

Two angles of a quadrilateral are of measure 65° and the other two angles are equal. What is the measure of each of these two angles? a. 130 degree b. 115 degree c. 230

Answer 1

Answer:

115°

Step-by-step explanation:

2 angles measure 65°

Let the other 2 angles be x°

By angle sum property, sum of all 4 angles should be 360°

So, 65° + 65° + x + x = 360°

130° + 2x = 360°

2x = 230°

x = 230/2 = 115°

So the angle is 115°

Answer 2

Answer:

b.115

Step-by-step explanation:

Let equal angle be x

ATQ,

65+65+x+x =360

or, 130+2x = 360

or, 2x= 360 - 130

or, 2x = 230

or, x = 230/2

x = 115

Therefore equal angles are 115