Check the picture below
notice, that running a line from the center, you end up with an angle bisector to a vertex of the triangle, now, this is a "regular polygon", so, all sides are equal, for a triangle, when all sides are equal, all angles are also equal, and since the sum of all internal angles in a triangle must add up to 180°, then that means, each angle is 60°
now, you run an angle bisector through it, you end up with a 30°, 30° split, and that gives you a 30-60-90 triangle
Answer:
0.375 but if im wrong its 0.125 i got 2 answers
In triangle do pythogrean to find height 5 sq -3sq = 16 and sq rt of 16 is 4
So triangles are 1/2 bh 1/2 (3)4 = 6
One sale 5x5 one shape 5x4 one gape 3x5 plus two triangles
25+ 20+ 15 + 6+6= 72
Answer:
Surface Area= 498 cm²
Step-by-step explanation:
To calculate the surface area of this composite shape, work out the area of each face and add them together (break this composite figure into two shapes)
- Calculate the areas of the different sized faces
7 x 7 = 49
12 x 7 = 84
12 x 7 = 84
- Now, multiply these areas be number of corresponding faces
49 x 2 = 98
84 x 2 = 168
84 x 2 = 168
- Add these areas together
98 + 168 + 168 = 434
Now do the same for the shape above it
2 x 2 = 4 → 4 x 2 = 8
2 x 7 = 14 → 14 x 2 = 28
7 x 2 = 14 → 14 x 2 = 28 = 64
Add the surface areas together : 434 + 64 = 498 cm²
<em><u>I HOPE THIS HELPED YOU :)</u></em>
<em><u /></em>
Answer: p= 25n/7 358
n will be the total number of students on the field trip
g could represent the number of groups
p will represent the number of pencils
For this situation with 100 students, John will need 358 pencils. for 14 2/7 groups.
To be safe, since he has a partial group, he should round up to 15 groups and get 375 pencils. Especially if the pencils only come in boxes of 25, and he can't buy a partial box.
Step-by-step explanation:
25g = p
g =n/7
Combine these to get the ratio
g becomes unnecessary
p= 25n/7
the exact calculation for g was 100/7 = 14.28571
The exact calculation for p = 100/7 × 25 = 357.142857
But you can't buy partial pencils!