Answer:
875 square inches
Step-by-step explanation:
The lateral area of a triangular prism is the sum of the areas of the three rectangular faces:
13×25 +15×25 +7×25 = (13 +15 +7)×25 = 35×25
= 875 . . . square inches
_____
The area of a rectangle is the product of its length and width. As we have seen here, the lateral area is the product of the height of the prism and the perimeter of its base.
Answer
Option 2, 4 and 5 :)
Step-by-step explanation:
Option 2 is already simplified to 20x + 30y
Option 4,
10*2x=20x and 10*3y= 30y so option 4 also simplifies to 20x + 30y
Next Option 5, 10*2x= 20x and 10*3y=30y. So it's also 20x + 30y
Answer:
36.5 Inches
Step-by-step explanation:
The perimeter of the triangle is the sum of all three(3) sides.
let the length of one congruent side be 'a', Therefore;
a + a + 46 = 119
2a = 119 - 46
a = 73/2
a = 36.5 inches.
The total of the internal angles in a tetradecagon is 2160.
2160 - 2012 = 148
The remaining angle must be 148 degrees.
Answer:
New dimensions of the floor is approximately 301.25 ft by 181.25 ft
Step-by-step explanation:
The question is incomplete. The complete question should be:
Manufacture wants to enlarger it's floor area 1.5 times that of the current facility. The current facility is 260 ft by 140 ft. The manufacture wants to increase each dimension the same amount. Write the dimensions of the new floor.
Given:
Length of floor = 260 ft
Width of floor = 140 ft
The floor area is increased 1.5 times.
To find the new dimensions of the floor.
Solution:
Original area of the floor = 
New area =
Let the length and width be increased by
ft.
Thus, new length = 
New width = 
Area of the new floor can be given as:
⇒ 
⇒ 
Multiplying using distribution.
⇒
⇒
Thus we can equate this with new area to get the equation to find 
subtracting both sides by 54600.
Using quadratic formula:
For a quadratic equation 

For the equation




∴ 
Since length is being increased, so we take 
New dimensions are:
New length 
New width 