Answer:
<h2>43 1/2</h2>
Step-by-step explanation:
The formula to find the area of a triangle is multiplying base times height divided by 2.
So we have 3+3+3 (which is the base) times height. Finally we have: 9 x 11, which is 99 and now we divide it by 2. So 99/2 = 49 1/2.
Now we subtract the missing rectangle, which we can find by multiplying 3 by 2, which is 6.
So now subtract 6 from 49 1/2, and you'll get 43 1/2.
How much does a poster board cost? thats kind of important
Answer:
girls = 125
boys = 87
Step-by-step explanation:
Total number of students in the 8th grade class = 212
Let g represent girls and b represent boys
Number of girls, g = 2b -49
Note that boys and girls in the class give a total of 212
So,
g + b = 212 ....eq 1
Slot in the value of g in the equation
2b - 49 + b = 212
2b + b - 49 = 212
3b - 49 = 212
Add 49 to both sides
3b - 49 + 49 = 212 + 49
3b = 261
Divide both sides by the coefficient of b which is 3
b = 87
Now that we've found the number of boys, let's find that of girls
We will slot in the value of b in eq 1
g + 87 = 212
Subtract 87 from both sides
g + 87 - 87 = 212 - 87
g = 125
So the number of boys is 87 and the number of girls is 125
Answer:
<u>Similarities</u><u> between a parallelogram and a rectangle</u>
- Quadrilateral (4-sided, two dimensional shape)
- Opposite sides are equal and parallel to each other
- Sum of all the interior angles is 360°
- Diagonals bisect each other
- Adjacent angles are supplementary (sum to 180°)
- Opposite angles are equal
<u>Differences</u><u> between a parallelogram and a rectangle</u>
- A rectangle has four equal interior angles (each are 90°) whereas only the opposite angles in a parallelogram are equal.
- The diagonals of a rectangle are equal in length, whereas the diagonals of a parallelogram are not equal in length.
All rectangles are parallelograms since the opposite sides of a rectangle are parallel, but all parallelograms are not rectangles.
Answer:
Step-by-step explanation: gfu
