What must the angles in a triangle add up to?

__º

13 answers

The angles in a triangle must add up to 180º.
If a triangle has a 32º angle and a 67º angle, what is the measurement of the third angle?
__º
To find the measurement of the third angle, we subtract the sum of the given angles from 180º.

180º - (32º + 67º) = 81º

Therefore, the measurement of the third angle is 81º.
If two angles of a triangle add up to 110º, what is the measure of the third angle?
__º
To find the measure of the third angle, we subtract the sum of the two given angles from 180º.

180º - 110º = 70º

Therefore, the measure of the third angle is 70º.
Find x in the figure.
one angle: 35º
second angle: 40º
third angle: x
To find x, we need to sum up all three angles of the triangle and subtract the given angles from 180º.

35º + 40º + x = 180º

Combining like terms, we have:

75º + x = 180º

To isolate x, we subtract 75º from both sides:

x = 180º - 75º

x = 105º

Therefore, the measure of the third angle, x, is 105º.
incorrect
Apologies for the mistake. Let's correct the solution:

Given information:
Angle 1: 35º
Angle 2: 40º

To find x, we can subtract the sum of the given angles from 180º:

x = 180º - (35º + 40º)
x = 180º - 75º
x = 105º

Therefore, the measure of the third angle, x, is 105º.
Find d in the figure.
one angle: 50º
second angle: 70º
third angle: d
To find d, we need to sum up all three angles of the triangle and subtract the given angles from 180º.

Given information:
Angle 1: 50º
Angle 2: 70º

To find d, we can subtract the sum of the given angles from 180º:

d = 180º - (50º + 70º)
d = 180º - 120º
d = 60º

Therefore, the measure of the third angle, d, is 60º.
Correct answers are:
180º
81º
70º
75º
120º
Apologies for the confusion earlier. Let's solve the problem correctly this time.

Given:

One angle: 50º
Second angle: 70º
Third angle: d

To find the measure of the third angle, we can subtract the sum of the given angles from 180º:

d = 180º - (50º + 70º)
d = 180º - 120º
d = 60º

Therefore, the measure of the third angle, d, is 60º.
Similar Questions
  1. what is the vocabulary word?Equilateral Triangle Isosceles Triangle Corresponding Angles Vertex Angle Reflexive Property
    1. answers icon 1 answer
    1. answers icon 1 answer
    1. answers icon 3 answers
  2. acute triangle (p. 318)adjacent angles (p. 303) alternate interior angles (p. 307) area (p. 328) compass (p. 341) complementary
    1. answers icon 3 answers
more similar questions