X - (-2) = 21 <== ur equation
x + 2 = 21
x = 21 - 2
x = 19
I need the model and the rest of the question to help you ;-;
Surface area is the area of the faces added together.
First lets find the area of one of the triangles.
Area of triangle is 1/2*base*hight
Area=1/2*2*3= 3
Area of ONE tringle is 3, and area of the FOUR tringles is 4*3 whihc is 12
Now lets find area of square
area of square is side*side
So, area is 2*2 which is 4
Now lets add area of triangles+area of square
12+4 which 16
Surface area is 16
Answer:
We need to do difference so we can have how many numbers differ between the 2 numbers
Step-by-step explanation:
For example: 5-2=? We want to know what is the difference between the number which is 3 hope I explained it the best I can!!
Answer:B
Step-by-step explanation:
