The sides of a triangle measure 5 cm, 8cm, and x cm

x = √89

Step-by-step explanation:

To find the 3rd side of any triangle using the other 2 known sides is simple.

First you want to identify the hypotenuse. It will be the longest side, opposite of the largest angle. The hypotenuse will represent c in the Pythagorean Theorem equation: a² + b² = c²

a and b will represent the other two sides.

When solving, I am assuming that the given sides are not the hypotenuse because it is unclear.

5² + 8² = √89

walter needs to make at least 5 more cookies but no more than 40. 5 ≤ x ≤ 40

step-by-step explanation:

20 ≤ x + 15 ≤ 55

subtract 15 from all parts

20-15 ≤ x + 15-15 ≤ 55-15

5 ≤ x ≤ 40

this means how many more cookies he has to make

walter needs to make at least 5 more cookies, but no more than 40 cookies; 5 ≤ x ≤ 40

answer

a,b, and d

explanation

a reflection angle is more than

but less than;

an angle that measures

is a reflex angle.(true)

an angle that measures less than

is acute.(true)

provided we are considering angles greater or equal to zero.

an acute angle lies in the range.

an obtuse angle is less than 180° but more than 90°

an angle that measures 300° is obtuse (false)

an angle that measures 65° is an acute angle.(true)