Question

Find the missing side.​

Answer 1

Answer:

5

Step-by-step explanation:

This is a right triangle, but note that you only know the measurement of one angle, which is 90 degrees.

Use the following formula to solve:

a² + b² = c²

In which:

a & b = shorter sides

c = hypotenuse

Plug in the corresponding numbers to the corresponding variables:

(3)² + (4)² = ?²

Solve. Remember to follow PEMDAS. First, solve the exponents, then add:

(3)² = (3 * 3) = (9)

(4)² = (4 * 4) = (16)

9 + 16 = ?²

25 = ?²

Isolate "?". Root both sides:

√(25) = √(?²)

? = √25 = √(5 * 5) = 5

Your missing side's measurement is 5.

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Answer 2

Answer:

The missing side is 5

Step-by-step explanation:

Step 1:  Use Pythagorean Theorem to find the hypotenuse

Since we are given two sides, a and b, we need to find the hypotenuse or c.

Formula: $a^2 + b^2 = c^2$

Plug in

$(3)^2 + (4)^2 = c^2$

$9 + 16 = c^2$

$25 = c^2$

Square root both sides

$\sqrt{25} = \sqrt{c^2}$

$\sqrt{5^2} = c$

$5 = c$

Answer:  The missing side is 5