Answer:
Radius = r = 7.5
Diameter = d = 15
Circumference = C = 15π
Step-by-step explanation:
We are given the image of a circle with a straight line passing through the center of the circle and touching its edges. Such a line is known as the diameter of the circle. From the image we can see the length of the diameter of the circle is d = 15 units.
Radius is define as half of the diameter. Since the diameter is 15 units, the radius of the given circle will be half of 15 which is r = 7.5 units.
Circumference of the circle = C = 2πr
Using the value of radius(r), we can write the circumference as:
C = 2π(7.5) = 15π
1.60
2. 70
3. 12 x 2, 8 x 3, 6 x 4
4. 18 x 2 , 12 x 3, 4 x 9
not sure for the first 2 but hope this helps
Answer:
23°
Step-by-step explanation:
We apply Pythagorean theorem to determine the missing length, Hypotenuse:
This hypotenuse corresponds to the right triangle and the tree's height, corresponds to the angle of elevation:
-We apply the law of Sines;
Hence, the angle of elevation is 23°
Answer:
1) Are there 4 right angles? (90° angles)
2) Are there 2 sets of parallel lines?
3) Are there 2 sets of congruent lines?
4) Are there a set of congruent diagonals?
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Answer:
12 feet and 6inches ..................
