Answer:
209.55in²
Step-by-step explanation:
Find area of sector CADE
Radius =22 in
Angle=90°
Formula to apply is ;
Ф/360 × π × r² where
Ф=angle of sector, π=3.142 and r =radius of circle
Find area of triangle CAD where base length is 22 inches and height is 22 inches
Area of triangle formula is;
1/2×b×h where b is base and h is height
Find area remaining
380.182-242=138.182in²
Find the area of sector CBDF
Radius=28in
Angle=60°
Formula to apply is ;
Ф/360 × π × r² where
Ф=angle of sector, π=3.142 and r =radius of circle
Area of triangle BDC
The formula to apply is
1/2×a×a×sinФ where a=28 inches and Ф=60°
Remaining area
410.55-339.48=71.075in²
Area created by overlapping circles
138.182+71.075=209.26in²
1.
Use the formula for the surface area of a sphere:
Plug in what we know:
Simplify the exponent:
Multiply:
This is an exact answer, if you want an approximate answer you can input 3.14 for pi:
2.
Use the formula for the volume of a sphere:
Plug in what we know:
Simplify the exponent:
Multiply:
This is an exact answer, if you want an approximate answer you can plug in 3.14 for pi:
3.
Since the two figures are similar, the ratio of their sides must be equal. So we can set up a proportion:
Cross multiply:
Divide 9 to both sides:
I think it's D. The area of A is k2 times the area of rectangle B
Answer:
a.o,w2,4,6,8,10
Step-by-step explanation:
paki check nlng kapag wrong