I. ABCD is a square so ∡BCD=90°
|BC|²+|CD|² = |BD|²
8² + 8² = |BD|²
|BD|² = 8²·2
|BD| = √[8²·2]
|BD| = 8√2
II. Circular segment BCD is a quater of circle (because ∡BCD=90°)
R=8
So the lenght of arc BD:
Perimeter of the figure: The area of circular segment BCD:
III. The area of triangle BCD:
IV. The area of figure:
Answer:
1. 315 m.
2. 567 yd.
3. 72 cm. cubes
4. $135
5. 216 ft., $540
if you need an explanation, comment and I will
Answer:
Step-by-step explanation:
x^2/100 + y^2/25=1 -----(1)
Since 25<100
Hence the above equation is of the form x^2/a^2+ y^2/b^2=1-------(2)
Comparing (1) and (2)
a^2=100
a=10
Major axis=2a=20
Hi there.
100 mph; how long would it take to drive 211 miles?
The answer here is rather simple. Divide 211 by 100 to determine how many hours it will take.
211 / 100 = 2.11
This means it will take 2 11/100 (or 2.11) hours to drive 211 miles.
I hope this helps!