Question

72°
Х
X=
degrees.
Enter

Answer 1

18

Explanation:

triangle =180

72+90=162

180-162

=18

Answer 2

x = 18°

Explanation:

Sum of all angles of a triangle = 180°.

So, 90° + 72° + x = 180°

=> 162° + x = 180°

=> x = 180° - 162°

=> x = 18°