Area of Rectangles and Squares.
Please show the work, I need help
2 answers:
Here, I think I can help you out:
1. 21 ÷ 3
= 7
Therefore, the length is 7cm².
2. 35 ÷ 7
= 5cm²
- And so on. Simply divide the area by the length of the side given; you can answer up to question six using this strategy.
7. All sides of a square are the same length.
7 x 7
= 49cm²
9. 2 x 3.5
= 7m²
- The formula to find the area of a square/rectangle is length x width. Just multiply the given lengths for the answers :)
Step-by-step explanation:
Q.1 Solutions
1. Area of rectangle= L×B
21=L×3
21/3=L
7cm Answer
2. Area of square=S×S
35m²=S×7m
35/7=S
5=S
5m Answer
3. Area of rectangle= L×B
5%m²=L×½m
5/½=L
2.5=L
2.5m Answer
4. Area of square= S×S
120mm²=S×10mm
120/10=S
12=S
12mm Answer
5. Area of rectangle= L×B
7%m²=L×1%m
7/1=L
7=L
7m Answer
6. Area of square=S×S
15cm²=S×6cm
15/6=S
2.5=S
2.5cm Answer...
Q.2 Solutions
Note: you might be knowing the formulas so please understand this:
7.49cm
8.400cm
10.86cm
11.40m
12.244m
13.1600m
14.120cm
15.134m
hope it helps!!!!! :) :)
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A^2 = b^2 + c^2 - 2bc cos a
= 11^2 + 5^2 - 2*5*11 cos 40
= 7.86 to 2 DP's
to find the remaining angles use the sine rule:-
a / sin A = b / sin B so
7.857/ sin 40 = 11 / sin B
sin B = 11 sin40 / 7.857 = 0.8999
<B = 64 degrees
so <C = 180 - 64-40 = 76 degrees
Answer:
the possible number would be 159 in
Step-by-step explanation:
Answer:
p=-7
Step-by-step explanation:
5p=-35
Divide both sides by 5
5p/5 =-35/5
therefore p=-7
Answer:
x = -0.4
x = -(2/5)
Answer:
The answer is (-5)(-9).
Step-by-step explanation:
As you multiply 2 negative number together, it will equals to positive number :
(-5)×(-9) = 45