Question

The measures of the three angles of a quadrilateral are 65º, 75º and 85º. The measure of the fourth angle is​

Answer 1

Answer:

The measures of the three angles of a quadrilateral are 65°,75° and 85°.The measure of the fourth angle *

65°

75°

85°

135°

2. The measures of two angles of a quadrilateral are 100° and 110° .The remaining two angles are equal. The measure of each of the remaining two angles is

30°

60°

75°

45°

3. The four angles of a pentagon are 40°, 75°, 125° and 135°. The measure of the fifth angle is *

175°

165°

170°

160°

4. The sum of two adjacent angles of a parallelogram is *

90°

45°

180°

360°

Other:

Explanation:

Mark's me ...

thanks

Answer 2

Assume the fourth angle as:x

x+65+75+85=360
x+225 =360
x =360-225
x =135