FIND THE SURFACE AREA OF THE FOLLOWING SHAPES! Round to the nearest tenth IF NECESSARY!

1.

2.

3.

4.

Step-by-step explanation:

1. Find the area of the base. 10×10=100. Now, find the area of one of the triangles. 5×13=65. Multiply 65 by 4. Now, add this number to 100. 100+260=

2. Divide the diameter by 2 to get the radius. r=12. h=10. . . . . . . . .

3. . r=4. h=12.6. . . . . . . .

4. Find the area of the base. 9×4=36. Multiply this by two to get the base and the top. This is 72. Now, find the front side area. 9×3=27. Multiply this by two to get the front and back sides. This is 54. Now, find the area of the left side face. 4×3=12. Multiply this by 2 to get both sides. This is 24. Add 72+54+24=

the simplified form is

step-by-step explanation:

we want to simplify the expression,

let us change the middle bar to a normal division sign to obtain,

we multiply the first fraction by the reciprocal of the second fraction to obtain,

we factor to obtain,

we cancel the common factors to get,

we simplify to get,

the correct answer is b