Write a rule for the sequence. Then find the unknown term. 25.7, 24.1, _____, 20.9, 19.3
2 answers:
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Answer:
The area of Trapezium is 171 cm² .
Step-by-step explanation:
Given as for a trapezium :
The measure of parallel sides are 25 cm and 13 cm
I.e AB = 25 cm , CD = 13 cm
The measure of other sides of the trapezium = AD = BC = 15 cm
Let The height of measure h is drawn on the side AB
So , The BOC is now a triangle
∴ The measure of BO = AB - AO = 25 cm - 13 cm = 12 cm
Let the area of Trapezium = A
Now, height h =
Or, h =
Or, h =
∴ h =
I.e h = 9 cm
From figure
∵ Area of trapezium = ×Height×( sum of parallel side )
or, A = ×h×( AB + CD )
or , A = ×9×( 25 + 13 )
Or, A = ×9×38
∴ Area = 171 cm²
Hence The area of Trapezium is 171 cm² . Answer
Given:
m∠R = 90° and m∠Q = 6°
PQ = 2.2 ft and RP = x
To find:
The length of RP.
Solution:
Using basic trigonometric formula:
Multiply by 2.2 on both sides.
(nearest tenth)
The length of RP is 0.2 feet.