200.6ft
Step-by-step explanation:
- find the area of the square that is L².=12²ft which is 144ft
- the area of the half a circle which is 1/2πr²which is 1/2×22/7×6²=56.6 after rounding of to one decimal place
- add the two areas 144+56.6=200.6ft
The third side measures exactly 15 centimetres (cm).
Answer:
75°
Step-by-step explanation:
∠ESK is the supplement of ∠EDK, so is 100°. ∠ESD = 1/2·arc ED, so is 25°. Since ...
∠ESK = ∠ESD + ∠DSK
you have ...
100° = 25° + ∠DSK . . . . fill in known values
75° = ∠DSK . . . . . . . . . . subtract 25°
_____
Regarding opposite angles of an inscribed quadrilateral
Chord EK divides the 360° circle into two arc: major arc EDK and minor arc ESK. The sum of those arcs is 360°. Each of the inscribed angles that intercepts those arcs has half the measure of the arc. That is, ∠ESK intercepts arc EDK, so has half its measure. Likewise, ∠EDK intercepts arc ESK, so has half its measure. The sum of those opposite angles will be the sum of half the measures of the arcs, so half the sum of the arcs, or 1/2·360° = 180°.
This is why we can say ∠ESK is the supplement of ∠EDK.
Answer:
3846.5 in
Step-by-step explanation:
- A = π
× 
- 35 × 35 = 1225 in
- 1225 × 3.14 = 3846.5 in
- So, the area is 3846.5 in
I hope this helps!
9514 1404 393
Answer:
x = 3
Step-by-step explanation:
The triangle is equilateral, so each side is equal to the others:
5x = 3x +6
2x = 6 . . . . . . . subtract 3x
x = 3 . . . . . . . . divide by 2
