Answer:
21mm
Step-by-step explanation:
The formula for solving the area of a rhombus is : 
, where x and y are two intersecting diagonals.
In this case, we are given both values, thankfully. 6 and 7 are to be replaced with x & y. Now, the rest you have to do is simple math.
The area of the rhombus is 21mm.
The flag pole is 
or write it as 
tall.
Step-by-step Explanation:
Let "p" be the height of the flag pole.
The ratio of the child height to the pole height is the same as the ratios of their respective shadows, so,
Now, Cross multiply :-
→ 
→ 
→ 
This 
can be rounded off to 
as it ends with 
So, the flag pole is <u>9 metres</u> tall.
Answer: It's 8
Step-by-step explanation:
Answer:
49
Step-by-step explanation:
The area of a shape is the amount of space it can occupy.Laura's design will be light enoughThe shape is given as a trapezium (see attachment).First, calculate the height (h) of the trapezium using the following Pythagoras theorem 52=h2+x2 Where: x=11−92=1 So, we have: 52=h2+x2 52=h2+1225=h2+1 Collect like terms h2=25−1 h2=24 Take square root sh=4.90The area of the shape is then calculated as follows: Area=12(11+9)×h Area=12(11+9)x4.90 Area=12×20×4.90 Area=10×4.90 Area=49
The area of the shape is 49 square inches.Hence, the shape will be light enough (because 49 is less than 80
