-2.88888889 would be your answer.
The answer is -26/9 but to make it simplified you would get -2 8/9
=) Glad to help!
A. <1, <2, and <3 added together have to equal 180 so <1+<2= 77, triangles equal 180 in total. 180-77=103, <3=103. <3 and <4 are supplementary so they have to equal 180 which is what <1 + <2 equaled
b. 77
Answer:
60 degrees
Step-by-step explanation:
A triangle has a total of 180 degrees. By subtracting the degrees of the other two angles, you find the third.
Thay are 2 point coplanar with point A,B and R