All triangles in this shape have same area as they have same base length and height length.
- area of triangle: 1/2 * base * height
Here the base is 4.2 cm and height is 2.5 cm for all the given triangles.
As a result, we can say that the area of 
A, B, C are equal.
1=2x^2-7
2x^2=8
x^2=4
so x=2 or x=-2
The correct answer is C. A statement we accept
without proof is called a postulate. It is also known as an axiom. These are rules
which are accepted to be true without any evidence that will prove these. For
instance, the postulates in the kinetic molecular theory.
Answer:
123°, 57°, 123°
46°, 90°
Step-by-step explanation:
28. m∠L=57° ⇒ opposite angle m∠J=m∠L=57°
m∠M= m∠K= 180° -m∠L= 180° - 57°= 123°
29. m∠W= m∠X= 90°
m∠Y= 180° -m∠W= 180° - 134°= 46°
