Answer:
16 : 100 = 8 : 50 = 4 : 25
Step-by-step explanation:
You just half each side by the same number
Answer:
a = 14
b = 24
c = 24.9
A = 33.2 degrees
B = 70 degrees
C = 76.8 degrees
Step-by-step explanation:
a/sin(A) = b/sin(B) = c/sin(C)
14/sin(A) = 24/sin(70)
sin(A)×24 = sin(70)×14
sin(A) = sin(70)× 14/24 = sin(70) × 7/12 = 0.548154029...
A = asin(0.548154029...) = 33.240464... degrees
the sum of all angles in a triangle is airways 180 degrees.
C = 180 - 70 - 33.240464... = 76.75954... degrees
24/sin(70) = c/sin(76.75954...)
c = 24×sin(76.75954...)/sin(70) = 24.86133969...
Answer : Surface area of pyramid = 4406832 square cm.
Explanation :
Since we have given that
Side of square base = 1212 cm
Slant height of pyramid = 1818 cm
As we know that ,
![\text{Surface area of pyramid }=\frac{1}{2}\times perimeter\times \text{ slant height}](https://tex.z-dn.net/?f=%5Ctext%7BSurface%20area%20of%20pyramid%20%7D%3D%5Cfrac%7B1%7D%7B2%7D%5Ctimes%20perimeter%5Ctimes%20%5Ctext%7B%20slant%20height%7D)
![\text{ Since, perimeter of square }=4\times side\\=4\times 1212\\=4848 cm](https://tex.z-dn.net/?f=%5Ctext%7B%20Since%2C%20perimeter%20of%20square%20%7D%3D4%5Ctimes%20side%5C%5C%3D4%5Ctimes%201212%5C%5C%3D4848%20cm)
Now,
![\text{ Surface area of pyramid }= \frac{1}{2}\times 4848\times 1818\\\\\text{ Surface area of pyramid }=4406832\text{ square cm}](https://tex.z-dn.net/?f=%5Ctext%7B%20Surface%20area%20of%20pyramid%20%7D%3D%20%5Cfrac%7B1%7D%7B2%7D%5Ctimes%204848%5Ctimes%201818%5C%5C%5C%5C%5Ctext%7B%20Surface%20area%20of%20pyramid%20%7D%3D4406832%5Ctext%7B%20square%20cm%7D)
Hence, surface area of pyramid = 4406832 square cm.