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4 years ago

PLEASEEE HELP ME ASAP!!

Mathematics

1 answer:

denpristay [2]4 years ago

7 0

Answer:

Hence,

The measure of ∠A is 60.065°

$\m\angle A= 60.065$

Step-by-step explanation:

Given:

ΔABC is a Right Angle Triangle at ∠ B = 90°

BC = Opposite side to ∠A = 13 unit

AC = Hypotenuse = 15 unit

To Find:

m∠A = ?

Solution:

In Right Angle Triangle ABC ,Sine Identity,

$\sin A= \dfrac{\textrm{side opposite to angle A}}{Hypotenuse}\\$

Substituting the values we get

$\sin A= \dfrac{BC}{AC}=\dfrac{13}{15}=0.8666\\\angle A=\sin^{-1}(0.8666)\\m\angle A= 60.065\°$

Hence,

The measure of ∠A is 60.065°

$\m\angle A= 60.065$

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3 years ago

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4 years ago

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Salsk061 [2.6K]

Answer:

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