Kieran subscribes to a text messaging service on his cell phone. His monthly bill for the service is given by the equation b = 0
2 answers:
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Answer:
<em>(1). E ; (2). C ; (3). H ; (4) A ; </em>
Step-by-step explanation:
<em>(1).</em> <u><em>m = </em></u><u><em> </em></u>
<em>(2).</em> <u><em>m = 2 </em></u>
<em>(3).</em> <u><em>m = - </em></u><u><em> </em></u>
<em>(4).</em> <u><em>m = - 2</em></u><u> </u>
Answer: The given triangle LMN is an obtuse-angled triangle.
Step-by-step explanation: We are given to use Pythagorean identities to prove whether ΔLMN is a right, acute, or obtuse triangle.
From the figure, we note that
in ΔLMN, LM = 5 units, MN = 13 units and LN = 14 units.
We know that a triangle with sides a units, b units and c units (a > b, c) is said to be
(i) Right-angled triangle if
(ii) Acute-angled triangle if
(iii) Obtuse-angled triangle if
For the given triangle LMN, we have
a = 14, b = 13 and c = 5.
So,
Therefore,
Thus, the given triangle LMN is an obtuse-angled triangle.