Volume of pyramid = 1/3*AH, where A is the area of the base and H is the height
Since we are given three sides of the triangle (the base of the pyramid), we should use Heron formula: Area of a triangle = sq.root of(s(s - a)(s - b)(s - c)), where s is the semi-perimeter (ie. the perimeter divided by 2) and a, b and c are side lengths.
s = (5 + 12 + 13)/2
= 30/2 = 15
A = sq,root of(15(15 - 5)(15 - 12)(15 - 13))
= sq.root of (15*10*3*2)
= sq.root of 900
= 30 m^2
Volume = 1/3*AH
= 1/3*30*9
= 90 m^3
Answer:
5 , -5
Step-by-step explanation:
c'mon this is easy. the absolute value of a number is that numbers distance away from zero on the number line. 5 and -5 are the only numbers that are five intergers away from zero.
Answer:
ED and EC
Step-by-step explanation:
If the two rays which extend in the opposite direction having same endpoint is said to be opposite rays.
From the picture attached,
Rays having same endpoint E but not in the opposite directions are ED and EC.
This pair of rays meet at point E having different directions.
Similarly EA and EB is the other pair of rays having same end point (at E) but not in opposite directions.
Answer:
25 feet from the surface
Step-by-step explanation:
10+15
Answer:
$219.63
Step-by-step explanation:
Market is the net of price and the cost of the product. It is calculated by applying a defined percentage on cost of the product and added to the cost to make a price to sale.
The wholesale price / cost = $125.50
Mark up rate = 75%
Markup received = $125.50 x 75% = $94.13
Retail Price = Cost + Markup
Retail Price = 125.50 + 94.13 = $219.63