Can someone explain this?
2 answers:
<h3>Answer: angle JML is 58 degrees (choice C)</h3>
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Explanation:
Check out the attached image below. I have marked the angles with A, B, and C such that
A = angle NMJ = x+45 (in red)
B = angle JML = x+66 (in blue)
C = angle NML = 95 (in green)
The two angles A and B combine to form angle C. Angles A and B are adjacent angles.
So,
A+B = C
(x+45) + (x+66) = 95
2x+111 = 95
2x+111-111 = 95-111 .... subtract 111 from both sides
2x = -16
2x/2 = -16/2 .... divide both sides by 2
x = -8
From here we can find the angle measures
A = angle NMJ = x+45 = -8+45 = 37 degrees
B = angle JML = x+66 = -8+66 = 58 degrees
As a check,
A+B = 37+58 = 95 = C
so the answer is confirmed.
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The correct answer is 12
Set up a ratio and then solve. See paper attached. (:
Answer:
{8 cm, 15 cm, 17 cm}
Step-by-step explanation:
we know that
The length sides of a right triangle must satisfy the Pythagoras Theorem
so
where
c is the greater side (the hypotenuse)
a and b are the legs (perpendicular sides)
<u><em>Verify each case</em></u>
case 1) we have
{5 cm, 15 cm, 18 cm}
substitute in the formula
----> is not true
therefore
Sean cannot make a right triangle with this set of lengths
case 2) we have
{6 cm, 12 cm, 16 cm}
substitute in the formula
----> is not true
therefore
Sean cannot make a right triangle with this set of lengths
case 3) we have
{5 cm, 13 cm, 15 cm}
substitute in the formula
----> is not true
therefore
Sean cannot make a right triangle with this set of lengths
case 4) we have
{8 cm, 15 cm, 17 cm}
substitute in the formula
----> is true
therefore
Sean can make a right triangle with this set of lengths