yes, just add all the angles together and if it equals 180 your ok
It is a right angle triangle and its 3rd angle is 70 degrees.
The 3rd angle is 70 degrees which would form a right angle triangle.
right triangle and the other angle would be 70 degrees. Hope I helped :)
70 degreesA right triangle has a right angle that measures 90 degrees, and the total number of degrees in a triangle is 180 degrees.180 - 90 leaves 90 for the other two, and 90 - 20 = 70
70 degrees
70 degrees A right triangle has one angle that HAS to be 90 degrees. If the other is 20 degrees, and all three angles need to add to 180 degrees: 90+20+x=180 x=70
A triangle has 180 degrees.A right triangle has exactly one angle measuring 90 degrees.If you know that one of the other angles of the triangle is 20 then your third angle is:180-90-20 = 70 degrees.
A scalene triangle
30 degrees
It is a right angle triangle and the 3rd angle would measure 70 degrees
55 degrees because there are 180 degrees in a triangle
45 degree angle