Answer: (B) 8 cm
Step-by-step explanation:
A triangle has 3 sides.
In order for it to be a triangle, the sum of sides a and b must be greater than the length of side c.
Testing (A) 7cm:
7 + 9 > 16
16 > 16
False
Testing (B) 8cm:
8+9 > 16
17 > 16
True
Testing (C) 25cm:
9 + 16 > 25
25 > 25
False
Testing (D) 26cm:
9 + 16 > 26
25 > 26
False
Answer:
5c^2+2cd-2d^2-15
Step-by-step explanation:
Hello, to find the perimeter of any shape, you just add all the side together. In this picture, you would add all the sides up like this:
4c^2+4cd+12+-5d^2-5cd+2+c^2-d^2+1+3cd+4d^2-30
Then, combine like terms (add all of the numbers with the certain variable together) and you would get the answer which is:
5c^2+2cd-2d^2-15
Answer:
C) AB = BC = CD = DA = 2√5
Step-by-step explanation:
Given
A(1, 4)
B(3, 0)
C(1, −4)
D(−1, 0)
We get the distance between point A and point B
AB = √((3-1)²+(0-4)²) = √20 = 2√5
BC = √((1-3)²+(-4-0)²) = √20 = 2√5
CD = √((-1-1)²+(0-(-4))²) = √20 = 2√5
DA = √((1-(-1))²+(4-0)²) = √20 = 2√5
C) AB = BC = CD = DA = 2√5
Answer:
1 hour: 15
1 and a half hours: 22 and 1/2
2 hours: 30
2 and 1/2: 37 and a 1/2
:)
Answer:
a triangle
Step-by-step explanation:
when looking at a triangular prism it is made of 4 triangles, so any way you cut it, it will be a triangle