Answer: 5.8 cm
Step-by-step explanation:
Given that the chord is 0.8 cm from the center of a circular ring and the radius r = 3 cm
Using pythagorean theorem to find part of the cord
3^2 - 0.8^2
= 9 - 0.64
= 8.36
Square root of the value above gives 2.89
The length of the chord = 2 × 2.89 = 5.782
= 5.8 cm (to the nearest tenth)
Answer:
343
Step-by-step explanation:
7 * 7 * 7
7 * 7 = 49
49 * 7 = 343
Answer:
60
Step-by-step explanation:
The triangles are similar so corresponding angles will be congruent. We also know this because both angles have two lines marking they are congruent.
Answer:
x = 5/4
y = 7/4
Step-by-step explanation:
The smaller triangle and the larger one are similar, so the sides are proportional.
(x+5)/5 = 10/8
x/5 + 1 = 1/4 + 1 . . . . . divide it out
x/5 = 1/4 . . . . . . . . . . .subtract 1
x = 5/4 . . . . . . . . . . . . multiply by 5
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For y, you can do exactly the same computations, replacing every instance of 5 with a 7. Then you get ...
y = 7/4