To find the perimeter just add the sides
5+5+6 = 16
To find the area, you need to use the following formula

we know b but we need to find the height. We can find the heigh by using pythagorean theorem

height =
h = height = 4

Cost:
6.00 per cm^2 = 6.00 x 12 = $72.00 dollars
Answer: First find what 20 % of the 9.52 bill is which would be $1.90
Add $1.90 to the $9.52 = $11.42 (answer)
Step-by-step explanation:
Answer:
What is the expresion I am confused?
Step-by-step explanation:
Answer:
<em> 200cm²</em>
Step-by-step explanation:
Total surface area of the prism = bh + L(s1+s2+s3)
b is the base of the triangle = 15cm
h is the height of the triangle = 8cm
Perimeter of the triangular base = s1 + s2 + s3 = 8+17+15
Perimeter of the triangular base = 40cm
L is the lateral height = 2cm
Substitute the given values into the formula;
Total surface area of the prism = 15(8) + 2(40)
Total surface area of the prism = 120+80
Total surface area of the prism = 200cm²
<em>Hence the total surface area of the prism is 200cm²</em>