Answer:
88 inches
Step-by-step explanation:
Diameter is 2 times the radius (r) so divided 28 by 2 to get 14 as the radius.
Plug this in:
2π14
28π
87.964
88
area of circle =22/7×4=12.56
Answer:
Hence x = y = 2
Step-by-step explanation:
Using the SOH CAH TOA identity
Hypotenuse = 2√2
Opposite = x
theta = 45
Sin theta = opp/hyp
Sin 45 =x/2√2
1/√2 = x/2√2
x = 2√2 * 1/√2
x = 2
To get y we will use the pythagoras theorem;
(2√2)² = x² +y²
(2√2)² = 2²+y²
8 = 4 + y²
y² = 8-4
y² = 4
y = √4
y = 2
Hence x = y = 2
