Please help quick
1) an iscosceles triangle includes two 72 degree angles. Which equation could be used to find the measure of the third angle?
A x + 72 = 180
B x = 180 - 72
C 72 ÷ x = 180
D 180 - 2(72) = x
Please answer quickly
An isosceles triangle includes two 72° angles. Which equation could be used to find the measure of the third angle?
Since a triangle has 180 degrees, you would subtract the other two angles from that amount. Which equation fits that?
1 is d
To find the measure of the third angle in an isosceles triangle with two 72-degree angles, we can use the fact that the total sum of angles in a triangle is always 180 degrees.
In this case, the measure of the third angle is equal to the difference between the total sum of angles in a triangle and the sum of the two given angles.
Therefore, the equation that could be used to find the measure of the third angle is:
B) x = 180 - 72
By substituting the known values, we can calculate the measure of the third angle.
x = 180 - 72
x = 108
So, the measure of the third angle in this isosceles triangle is 108 degrees.