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Afina-wow [57]
3 years ago
7

A diagonal of a rectangle is 8cm and forms an angle measuring 30 with one side. Find the area of the rectangle

Mathematics
1 answer:
lara [203]3 years ago
6 0

Answer: =16*√3 cm²

Step-by-step explanation:

As the diagonak AC of rectangle ABCD= 8 cm and angle CAD=30° we can write

AD=AC*cos30°= 8*√3/2=4*√3

AB=CD=AC*sin30°=8*1/2=4

So the area of rectangle is

S= AB*AD=4*4*√3=16*√3 cm²

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RSB [31]

The quantity that is present after 2000 years will be A. 7.851 grams.

<h3>How to calculate the quantity?</h3>

From the information given, initially at t = 0, the quantity is 10 grams.

After 2000 years, the appropriate quantity will be:

Q(2000) = 10 (1/2) × (2000/5730)

Q(2000) = 7.851 grams.

In conclusion, the correct option is A.

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7 0
2 years ago
Forgot how to solve, i need help man..
Anna71 [15]

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Step-by-step explanation:

5 0
3 years ago
ASAP Please need help with variables and coefficients, solve all please. First correct answer gets brainliest.
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3 years ago
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3 years ago
Me. Fowler has 16 homework papers and 14 exit tickets to return. Ms. Rivera has 64 homework papers and 60 exit tickets to return
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Answer:

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here are the steps i took:

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