Answer:
The surface area of the prism is <u>480 in²</u>.
Step-by-step explanation:
Given:
The prism dimensions are 8in 15in 17in and 9in.
Now, to find the surface area:
So, to get the surface area we put formula:
a=8in, b=15in, c=17in and h=9in.
Surface area = 2A+(a+b+c)h.
Whereas, 
And, 
<em>Now, we find </em><u><em>s</em></u><em> first:</em>



<em>Then, we get</em><u><em> A </em></u><em>:</em>



<em>On solving we get:</em>

Now, putting the value of A in the formula to get the surface area:





Therefore, the surface area of the prism is 480 in².
a) 5/7
b) 4459 cm cube
c) 2275 cm cube
Step-by-step explanation:
Step 1 :
a)
The Side AB (28 cm) has been scaled to side DE (20 cm)
Let x b the scale factor.
Then we have 28 *x = 20
=> x = 20/28 = 5/7
Hence the scale factor is 5/7
Step 2 :
b)
Given the height of the triangular prism is 15 cm
Volume = ( 1/2 ) * base* height of the triangle * height of the prism
= (1/2)* 21*28*15 = 4410 cm cube.
Step 3 :
c)
Given volume of the triangular prism with base ABC is 4459 cm cube
The scale factor is 5/7
Hence the volume of the prism with DEF as base is
4459 * (5/7)*(5/7) = 2275 cm cube.
Answer:
The one that has the value of one.
Step-by-step explanation:
21\25
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4:15 to 5:00 is 45 minutes; 5:00 to 5:50 is 50 minutes. 50+45=95 minutes = 1 hour and 35 minutes.