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2 answers:
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The radius of this circle is (B) 4.9 cm.
<h3>To find the radius of the circle:</h3>To solve this problem, we need to, first of all, convert the angle from radians to degrees.
data;
- length of an arc = 18cm
- angle = 7/6π rads
- π= 3.14
Length of an Arc:
The formula for the length of an arc is given:
θ/360 ×
Let's substitute the values and solve:
From the calculations above, the radius of this circle is 4.9cm.
Therefore, the radius of this circle is (B) 4.9 cm.
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Complete question
A circle has a central angle measuring 7pi/6 radians that intersects an arc of length 18 cm. What is the length of the radius of the circle? Round your answer to the nearest tenth. Use 3.14 for pi.
(A) 3.7 cm
(B) 4.9 cm
(C) 14.3 cm
(D) 15.4 cm
The perimeter of given figure is 20 meters.
Step-by-step explanation:
Given lengths of shape are;
3m, 4m, 7m, 1m, 5m
We have to find the perimeter of the shape.
A perimeter is the length of outline or boundary of any shape.
Perimeter of the shape = Sum of lengths
Perimeter of the shape =
Perimeter of the shape = 20 meters
The perimeter of given figure is 20 meters.
Keywords: addition, perimeter
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Answer:
d=8
e=11.31
Step-by-step explanation:
side8 and side(d) are the same length
8squared+8squared=128
=11.31
hope this helps!