Answer:
The hight length : h
The base length : a
Apply the Pythagorean theorem in the right triangle :
h² = 13² - (10/2) = 144
h = √144 = 12 cm
S = (a x h)/ 2 = ( 10 x 12 )/2 = 60 cm²
Step-by-step explanation:
Answer:
13
Step-by-step explanation:
Take this one step at a time
- 1/10 of 3000 = 3000/10 = 300
- 1/10 of 300 = 300 / 10 = 30
- 1/10 of 30 = 30/10 = 3
- So she is 10 more than this which is 13.
- Sora is 13
You can do this another way.
- Age = (1/10)*(1/10)(1/10) * 3000 + 10
- Age = 1/1000 * 3000 + 10
- Age = 3 + 10
- Age = 13
The formula for the number of combinations of choosing "r" objects from a larger set of "n" is
combinations = n! / r! * (n - r)!
we know combinations = 35 and r = 3 so we have to solve for "n"
35 = n! / 3! * (n -3)!
n = 7 colors were available
Step-by-step explanation:
- 90-27=63°
- <2
- <2,<4
- 360°
Answer:
The second option, 1,008 cm²
Step-by-step explanation:
This shape has 5 sides to solve for with reguards to surface area.
Let us solve for them all.
[1 & 2 - the triangles]
12 * 9 = 108 cm²
-> I am not going to divide since we have 2 congruent triangles
[3 - the bottom side]
25 * 12 = 300 cm²
[4 - the side facing away]
25 * 9 = 225 cm²
[5 - the side facing up]
25 * 15 = 375 cm²
Now we will add them together for the total.
108 + 300 + 225 + 375 = 1,008 cm²
The surface area for the triangular prism shown is 1,008 cm².