Which length could represent the side length of a right triangle?
1 answer:
Answer:
A
Step-by-step explanation:
If the square of the longest side is equal to the sum of the squares on the other 2 sides then the triangle is right.
I
longest side squared = ( )² = 74
5² + 7² = 25 + 49 = 74
Thus these sides represent a right triangle
II
longest side squared = ( )² = 106
7² + 8² = 49 + 64 = 113
These sides do not represent a right triangle
III
longest side squared = ( )² = 133
6² + 10² = 36 + 100 = 136
These sides do not represent a right triangle
The only valid sides are I → A
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Answer:
Measure of minor angle JOG is
Step-by-step explanation:
Consider a circular track of radius 120 yards. Assume that Cherie starts from point J and runs 200 yards up to point G.
.
Now the measure of minor arc is same as measure of central angle. Therefore minor angle is the central angle .
To calculate the central angle, use the arc length formula as follows.
Where is measured in radian.
Substituting the value,
Dividing both side by 120,
Reducing the fraction into lowest form by dividing numerator and denominator by 40.
Therefore value of central angle is , since angle is in radian
Now convert radian into degree by using following formula,
So multiplying with
to convert it into degree.
Simplifying,
So to nearest tenth,
