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3 years ago

5 cm

Mathematics

1 answer:

Sphinxa [80]3 years ago

7 0

Answer:

The graph is missing, so there are two options m∠A = 36.87° or m∠A = 53.13°

Step-by-step explanation:

Assuming that 3 cm, 4 cm and 5 cm are the length of the sides of a triangle, then a right triangle is formed, in which 5 cm is the length of the hypotenuse and 3 cm and 4 cm are the length of the legs.

Angle A is either the angle between 4 cm and 5 cm sides or between 3 cm and 5 cm sides. For the first case:

cos(A) = adjacent/hypotenuse =

cos(A) = 4/5

A = arccos(4/5) = 36.87°

For the second case:

cos(A) = 3/5

A = arccos(3/5) = 53.13°

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Answer:

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Step-by-step explanation:

Given

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Required

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The above represents a quadratic equation and as such could take either of the following conditions.

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(2) One real root

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For a quadratic equation

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