The answer is D:)
the reason why is because on September 17, 1787, the Constitution of the United States of America was signed by 38 of the 41 delegates present at the conclusion of the convention.

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2 years ago

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Can someone please help me with math.

makvit [3.9K]

Answer:

5. B) 55

6. D) 15

Step-by-step explanation:

One of the properties of a triangle is that the sum of angles in a triangle will always equal (180) degrees. One can apply this here, form an equation and solve for (x). Remember, a box around an angle indicates that the measure of the angle is (90) degrees.

90 + x + 35 = 180

Simplify,

125 + x = 180

Inverse operations,

x = 55

This triangle is a right triangle, as mention earlier, a box around an angle indicates that the angle measure is (90) degrees. One of the criteria of a triangle to be considered a right triangle is that it must contain a (90) degree angle. One of the properties of a right triangle is that it follows the Pythagorean theorem, the Pythagorean theorem states the following,

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

Where (a) and (b) are the legs or sides adjacent to the right triangle, and (c) is the hypotenuse or side opposite the right angle.

$(9)^2 +(12)^2 = (c)^2$

Simplify,

$81+144=c^2\\\\225=c^2$

Inverse operations,

c = 15

8 0

2 years ago