Answer:
1st answer
Step-by-step explanation:
From pythagorus theorem.
Since hypotenuse

Answer:
y=
+ 
you first find the gradient of the line by picking out any two coordinates then u fill the values in the equation of a line
Since there are 12 inches in a foot, it would be 3/12, or 1/4.
Answer:
1 is 90
2 is 52
Step-by-step explanation:
1 is a right angle so its 90
for 2 angles in a triangle equal to 180
so 180-90-38 is equal to 52