112k views
4 votes
NO LINKS!! URGENT HELP PLEASE!!

Find the shaded area of each figure, and round your answer to one decimal place if necessary. #4-6

NO LINKS!! URGENT HELP PLEASE!! Find the shaded area of each figure, and round your-example-1

2 Answers

3 votes

Answer:

38 & 27 & 147

Explanation:

4) 38cm²

5*4 = 20cm²

2*9 = 18cm²


5) 27m²

6*6 = 36m²

3*3 = 9m²


6) 147in²

14*14 = 196cm²

7*7 = 49in²

User Fbarikzehy
by
8.3k points
2 votes

Answer:

4) 38 cm²

5) 27 m²

6) 147 in²

Explanation:

To calculate the area of each given figure, subtract the area of the cut-out rectangle (marked in blue on the attached diagram) from the area of the larger rectangle.


\boxed{\begin{minipage}{5cm}\underline{Area of a rectangle}\\\\$A=w\cdot l$\\\\where:\\ \phantom{ww} $\bullet$ \quad $w$ is the width.\\ \phantom{ww} $\bullet$ \quad $l$ is the length.\\\end{minipage}}

Question 4


\begin{aligned}\textsf{Total Area}&=\textsf{Larger rectangle}-\textsf{Cut-out rectangle}\\&=9 \cdot 6- (9-5)\cdot 4\\&=9 \cdot 6- 4\cdot 4\\&=54-16\\&=38\; \sf cm^2\end{aligned}

Question 5


\begin{aligned}\textsf{Total Area}&=\textsf{Larger rectangle}-\textsf{Cut-out rectangle}\\&= 6\cdot 6- 3\cdot 3\\&=36-9\\&=27\; \sf m^2\end{aligned}

Question 6


\begin{aligned}\textsf{Total Area}&=\textsf{Larger rectangle}-\textsf{Cut-out rectangle}\\&= 14\cdot 14- 7\cdot 7 \\&=196-49\\&=147\; \sf in^2\end{aligned}

NO LINKS!! URGENT HELP PLEASE!! Find the shaded area of each figure, and round your-example-1
User Secretmike
by
8.3k points

No related questions found

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Categories