Answer:
21
90
Step-by-step explanation:
Surface are just means that you need to find the area of every face, then add.
TO find the Area of the rectangle do 16*8 = 128
For the triangle the area formula is b*h*1/2 So do 7*8*1/2= 28
There are four sides total and two triangles and two rectangles so 28+28+128+128= 312
SO the surface area is 312 in cubed
Answer:
16
Step-by-step explanation:
If you add 16 to 20 then you get 36. twice of 36 is 72
Answer: the third option is correct.
Step-by-step explanation:
The largest negative number has the least value. That is -3/4.
It may help to convert the fractions to decimals. Remember that |absolute value| is considered positive in these questions.
