Step-by-step explanation:
use herons formula
√s(s-a)(s-b)(s-c)
where s is the semi perimeter
S=20
and a,b,c are sides of triangle
=√20(20-17)(20-9)(20-14)
=√20.3.11.6
=62.92
nearest whole number is 63
option B is correct
Answer:
k^2 ÷ k^2 the third one is correct
Answer:
J: 28 square root 3
K: 56
Step-by-step explanation:
not sure about J but def sure abt K
Answer:
Its an irregular pentagon
Step-by-step explanation:
To find out the thickness of each book you would have to divide 135 inches by 60 to get 2.25 .
135 ÷ 60 = 2.25
so the answer would be A
