Since the angle 225° is in the third quadrant, the reference
angle formula is Ar=Ac-180°. Ar = 225° − 180°
Ar=225°-180°
The reference angle is Ar=45°
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Answer:
472 in²
Step-by-step explanation:
This net is made up of 3 identical rectangles and 2 identical triangles.
Area of a rectangle = width x length
Area of a triangle = 1/2 x base x height
<u>Rectangle</u>
- width = 8 in
- length = 19 in
<u>Triangle</u>
<u>Surface Area</u>
SA = 3(8 x 19) + 2(0.5 x 8 x 2)
⇒ SA = 456 + 16
⇒ SA = 472 in²
Answer:
Step-by-step explanation:
hello :
D: (x + 9)2 + (y + 4)2 = 5
But in here you can ask questions that are not math so this app has more variety but what ever works for you use it.
Answer:
∠KMN = 66°
Step-by-step explanation:
In ΔKMN,
∠MKN + ∠KNM + ∠KMN = 180 {Angle sum property of triangle}
39 + 75 + ∠KMN = 180
114 + ∠KMN = 180
∠KMN = 180 - 114
∠KMN = 66°
