Answer:
37/8 (fraction) or 4.625 (decimal) or 4 5/8 (mixed number)
Step-by-step explanation:
<h3><u>
Answer:</u></h3>
<h3><u>
Step-by-step explanation:</u></h3>
We know that:
- Total degrees of triangle: 180°
Using this clue, we can find m∠1.
- => 67 + 62 + m∠1 = 180
- => 129 + m∠1 = 180
- => m∠1 = 180 - 129
- => m∠1 = 51°
<h3><u>
Conclusion:</u></h3>
We have finally found the answer to the missing angle. The answer is 51°.
Hoped this helped.
Since there are 13 sheets in a bundle, 16 bundles have 13*16=208 sheets. Next, we want to find how much 4 sheets goes into 208 sheets, so we have 208/4=52 doghouses
Answer:
140
Step-by-step explanation:
4 * 4 =16
Right triangle is 10 because 5 *4=10
9 * 9 = 81
7*5=35
16 + 10 + 81 + 35= 142
142 rounded to the nearest ten is 140
Octagon, stop sign.
Eight isoscles triangles. It looks like we're told the side is 9.9 and the height to the side (also called the apothem) is 12.
So each isosceles triangle has area (1/2)(9.9)(12) and we have eight of them,
area = 8(1/2)(9.9)(12) = 475.2
Answer: 475.2
Usually we wouldn't be told 9.9 -- this is the baby version. We know each of those isoscles triangles has unique angle 360/8=45 degrees, so the apothem and half the side of the octagon are a right triangle with acute angle 22.5 degrees.
The area of the right triangle with long leg 12, short leg x,
tan 22.5 = x/12 or
x = 12 tan 22.5
Twice that is what we're told is 9.9; let's check:
2x = 24 tan 22.5 = 9.941125496954282
The area of the little right triangle is
(1/2) 12 × 12 tan 22.5
and there are 16 of these
16 (1/2) 12 × 12 tan 22.5 ≈ 477.174