Answer:
No not all right angles are congruent.
Step-by-step explanation:
Divide 45 and 9 it was give you -5
Subtract 15 from both sides of the equation
Simplify
Divide both sides of the equation by the same term
Simplify
ANSWER: x= 52/9
2x = 7 + 3
2x = 10
x = 10/2
x = 5
S: {5}
The sine of 1/2 the angle = 13 / 32
so this angle = 23.9695 degrees
Therefore the required angle = 2 * 23.9695 = 47.939 to 3 DP's.
