Answer:
60
Step-by-step explanation:
All the sides are equal, which makes it an equilateral triangle.
That means all the angles are equal
180/3 = 60
Angle A is 60 degrees
ANSWER
True
EXPLANATION
The given trigonometric equation is:

We take the LHS and simplify to arrive at the RHS.

Collect LCM on the right hand side to get;

This implies that



This identity has been verified .Therefore the correct answer is true.
Answer:
The second one (3x, 9x)
Step-by-step explanation:
Like terms are the terms that either have the same variable or have no variable.
Answer: volume of the cube is (7 cm)^3= 343 cm^3