Answer:
1.179.17
Step-by-step explanation:
area of triangle= height*base/2=25.48
there are 4 triangles so multiply 25.48*4=101.92
Since it’s a regular octagon, all the sides are equal to = 4cm
Like shown above in the diagram, the sides of the octagon can be extended such that it forms a square.
According to Pythagorean theorem, x2 + x2 = 42; 2x2 = 16
x = √8cm
Total side length for the square= 4 + √8 + √8 = 9.657cm
Area of square= (9.657cm) 2 = 93.25cm2
Area of 4 triangles= 4 (1/2 * √8 * √8) = 16.0cm
Area of octagon, A = Area of square – Area of 4 triangles = 93.25 – 16.0 = 77.25cm2
now add 101.92+77.25=179.17
Answer:
i dont answer your question
Answer:
D
Step-by-step explanation:
ΔWXZ and ΔYZX
WZ ≅XY {Given}
ZX ≅ ZX {Reflexive property}
∠W ≅ ∠Y
But for SAS congruent the congruent angles should between congruent sides( WX & WZ should be congruent to ZY & XY respectively).
So it cannot be proved using SAS congruent
Answer:
Step-by-step explanation:
1 yard = 3 feet = 36 in
so 1 in = 1/36 yard, 1 ft = 1/3 yard.
The volume of the layer of the topsoil, is:
4 in * 28 ft * 14 ft = 4 *(1/36)*23*(1/3)*17*(1/3) yard cubed =
(4*28*14)/(36*3*3)= 1955/324=
The store only sells increments of 1/4 = 0.25 cubic yards.
we need 6.034/0.25=
So we need to buy 25 (24 will not be enough) increments of 1/4 cubic yards.
