Find the surface area of this composite solid.

a.93 m^2
b.111 m^2
c.84 m^2
d.102 m^2

it’s 93cm^

Step-by-step explanation:

remember that the bottom of the triangular prism/top base don’t count as surface area.

first equation for the surface of the triangular prism: 1/2ps = 1/2•12•4 = 24m

add it to the surface area of the rectangular prism: 3•3 + 5•3•4 = 69m

then simply add them

your answer is 93m^!

enjoy :))

step-by-step explanation:

if you want to solve percent error follow these steps.

1. subtract the accepted value from the experimental value.

2. take the absolute value of step 1.

3. divide that answer by the accepted value.

4. multiply that answer by 100 and add the % symbol to express the answer as a percentage.

if you want to solve percent of change just do this.

1. work out the difference (increase) between the two numbers you are comparing.

2. divide the increase by the original number and multiply the answer by 100. if your answer is a negative number then this is a percentage decrease.

hope this : )

12

step-by-step explanation:

12 + 5 = 17

12x2=24

24-7=17