Answer:
The third angle of the triangle is 90º
Step-by-step explanation:
A triangle has three interior angles.
The sum of the three interior angles of a triangle is 180º.
In this problem, we have that:
2 angles of 45º
A third angle x
The sum of these angles is 180. So
2*45 + x = 180
90 + x = 180
x = 90º
So
The third angle of the triangle is 90º
We have
First, we can combine like terms 3y and -7y to get -4y.
Then, we have
We could then subtract 8 on both sides to get
Finally, we isolate y completely by dividing both sides by -4, to get
Answer:
45
Step-by-step explanation:
YOU GET THAT BECAUSE YOUR USING EXPONETS
Answer: 615.44
A=4(pi)r^2
A=4(pi)7^2
A= 4 x 3.14 x 49
A= 615.44