The main area formula is A= 5x s x r/ 2
where s is a side
r is the radius, r can be found as following
r is the hypothenuse, so tanα=a/S, where S=s/2=7
tanα=22/7=Pi, so <span>α=arctanPi= 72.3°
</span>for finding r, r = a/sin <span>α=22/sin 72.3°=23
</span>so finally
the area is A= (5x 14x 23 )/2=808
Answer:
Step-by-step explanation:
Recall the following Pythagorean Identity:
Let's solve the x equation for cos(t) and the y equation for sin(t).
After the solve we will plug into our above identity.
x=5cos(t)
Divide both sides by 5:
(x/5)=cos(t)
y=5sin(t)
Divide both sides by 5:
(y/5)=sin(t)
Now we are ready to plug into the identity:
Multiply both sides by 5^2:
This is a circle with center (0,0) and radius 5.
All I did to get that was compare our rectangular equation we found to
where (h,k) is the center and r is the radius of a circle.
X+7=2+3
Simplify both sides of the equation.
x+7=2+3
simplify step-by-step.
x+7=(2+3)(Combine Like Terms)
x+7=5
Subtract 7 from both sides.
x+7−7=5−7