Alana is making circular picture frames. She needs to put a ribbon along the border of each one. Use what you know about pi and
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Answer:
The amount of change she received was dollar.
Step-by-step explanation:
Price of each carton of milk is cents and she bought 3 cartons of milk.
We know that, <u>1 dollar = 100 cents</u>
So, 1 cent = dollar.
and cents
dollar.
Thus, <u>the total price of 3 cartons of milk</u> dollar.
She gave the cashier $10.
So, the amount of change she received dollar.
1. Consider right triangle ABK. The hypotenuse AB is 6 un. and the leg AK is 3 un. Since the leg is half of the hypotenuse, then the opposite to the leg angle is 30°. This means that m∠ABK=30°. Then m∠BAK=90°-30°=60°.
2. By the Pythagorean theorem,
3. Consider right triangle ABD. In this triangle AD is hypotenuse and m∠ADB=90°-m∠BAD=90°-60°=30°. Then the leg AB opposite to the angle 30° is half of the hypotenuse and AD=12 un.
4. The area of parallelogram is