Volume of triangular pyramid = 1/3 b²h
Use the formula to find your answer.
The sine of any acute angle is equal to the cosine of its complement. The cosine of any acute angle is equal to the sine of its complement. of any acute angle equals its cofunction of the angle's complement.
A
C
B
Since m∠A = 22º is given, we know m∠B = 68º since there are 180º in the triangle. Since the measures of these acute angles of a right triangle add to 90º, we know these acute angles are complementary. ∠A is the complement of ∠B, and ∠B is the complement of ∠A.
If we write, m∠B = 90º - m∠A (or m∠A = 90º - m∠B ), and we substitute into the original observation, we have:
Answer:
y = 1/2x + 2
Step-by-step explanation:
y = mx+b, where m is the slope, b is y-int, and y and x are variables.
Step 1: find the y-int: 2. Using this you can out rule C and D.
Step 2: find the RISE/RUN: 1/2. This is your slope.
Step 3: fill in your equation.
Hope that helps
The sum of all angles (around the black dot) is 360°
All 5 angles (if you forget the red line) are the same; so each angle is 360°/5 = 72°
So Angle 1 is 72°
