117.8 because angle at a point add up to 360 so 360 -(90 + 38.2+31.7+82.3) =117.8
22.5/0.40 = 5.625 Divide the acres by 1/4 and you have your answer
Answer:
j = 23 years-old s = 92 years old.
Step-by-step explanation:
j = s - 70
s = 4j
j = 4j - 70
-3j = -70
j = 70/3
j = 23
s = 92
Y=-2/3-5 That’s the answer change of y is down 2 change in x is 3 to the right . And the y intercept is -5
Answer: B.pi/2
ABCD is a square
=> Δ ABD is a isosceles right triangle at A
using pythago theorem, we have:
AB² + AD² = BD²
=> 2AD² = 4
⇔ AD² = 2
⇒ AD = √2
through O, draw EF parallel to AD and BC
=> EF is diameter
because EF//AD => EF = AD = √2 (because circle O is inscribed the square ABCD)
=> the area of the circle is 
Step-by-step explanation: