Answer:
C
Step by step explanation:
When you move a shape via rigid transformations, the dimensions of the shape do not change (by definition). This includes translation and rotation. Since the size or measure of any of the side lengths or angles is not changing when you move the shape, the only way that you can match one shape onto another with rigid transformations is if all of the corresponding sides and angles are congruent. Therefore, the correct answer is choice C. Hope this helps!
A² + b² = c²
~~~~~~~~
a² + 3² = 4²
a² + 9 = 16
a² = 7
a² = 2.6 ft
Answer:

Step-by-step explanation:
In a triangle the sum of all angle measures is always 180 degrees


degrees
By splitting the isosceles triangle down the middle we can calculate the base
So ∠H = 23°, ∠K = 90°, ∠J = 67°, HJ = 19
With this we can solve for half of the base. the trig function will need to use is sin, since the side opposite of ∠H will be part of the base. 
now we need to rearrange the formula for what we have.


This value is only half of the base, so we need to double it

Answer:
It's hard to make out which is x and y, if x is lower right and y is at the top, then:
x = 55°
y = 70°
Step-by-step explanation:
x = 55° because it is an isosceles triangle
y = 180° - 55° - 55° = 70°
Answer:d
Step-by-step explanation: