4x + 1 = 90 degrees
4x = 89
x = 22.25
The answer to the above question can be explained as under -
We know that, the sum of angles of triangle is 180°.
So, vertex angle plus base angles are equal are equal to 180°.
Let the vertex angle be represented by "v" and base angles be represented by "b".
Thus, v + b + b = 180°
So, v + 2b = 180°
Next, the question says, the vertex angle is 20° less than the sum of base angles.
Thus, 2b - 20° = v
<u>Thus, we can conclude that the correct option is A) v + 2b = 180°, 2b - 20° = v</u>
Answer:
theres 60 minutes in an hour
Step-by-step explanation:
Answer: C. 3600 ft.
Step-by-step explanation:
Given: The initial circumference of the jogger's park= 1200 feet.
Let r be the radius of the joggers park.
The circumference of joggers park is given by:-
Now, the radius of new park= 3x
Then, the circumference of joggers park is given by:-
