Exploring Angles and Triangles

What is the sum of complementary angles?

• 180 degrees

• 90 degrees

• 45 degrees

• 360 degrees

If angle A is 42 degrees in a supplementary pair, what is angle B?

• 90 degrees

• 142 degrees

• 138 degrees

• 48 degrees

What type of angles sum up to 180 degrees?

• Obtuse

• Acute

• Supplementary

• Complementary

What is the value of x if angle F is 4x + 5 and angle G is 15, and they are complementary?

• 17.5

• 20

• 22.5

• 15

What is the measure of angle F when x is 17.5?

• 75 degrees

• 70 degrees

• 65 degrees

• 80 degrees

In a triangle, if angle A is 2x + 5, angle B is 51, and angle C is 90, what is x?

• 15

• 17

• 34

• 20

What is the measure of angle A when x is 17?

• 39 degrees

• 34 degrees

• 42 degrees

• 45 degrees

What is the correct equation to find x in a triangle where angles are 2x + 5, 51, and 90?

• 2x + 145 = 180

• 2x + 141 = 180

• 2x + 150 = 180

• 2x + 146 = 180

In an isosceles triangle, if one angle is 122.6 degrees, what are the measures of the other two angles?

• 28.7 degrees each

• 25 degrees each

• 30 degrees each

• 35 degrees each

What is the sum of the interior angles of any triangle?

• 270 degrees

• 180 degrees

• 90 degrees

• 360 degrees