Answer:
A. 147
Step-by-step explanation:
Divide the polygon into rectangles.
You will have 2 rectangles:
1) 3 x 10
2) 9 x 13
Now you just need to find the area of this 2 rectangles and add them up.
Expand so it would be 21 + 3x? I’m guessing
Answer:
0.42
Step-by-step explanation:
→ Use Pythagoras to find YZ
√2.5² - 0.7² = 2.4
→ Half the answer to find YW
2.4 ÷ 2 = 1.2
→ Substitute the values into the formula for the area of a triangle
0.5 × 0.7 × 1.2 = 0.42
Because division is repeated subtraction.
For example: "10 divided by 2" means "How many times can you
subtract 2 from 10 before the 10 is all gone ?".
When you divide a whole number by ' 1 ', you're trying to find out
how many times you can subtract ' 1 ' from the whole number.
Of course, the answer is the whole number itself.
Now, when you divide a whole number by a piece less than ' 1 ',
you're trying to find out how many times you can take a piece of ' 1 '
away from the whole number. Of course THAT will be more times
than the whole number itself.
