Answer:
Step-by-step explanation:
Answer:
A and C
Step-by-step explanation:
Since it is isosceles two sides should be equal and we already know the perimeter is 21in.
<em>5</em>+<em>5</em>+11=21in
5+<em>8</em>+<em>8</em>=21in
Triangular prism
length of slanted side:
sqrt(3^2 + 4^2) = 5
SA = 2(1/2)(8)(3) + 8(12) + 2(5)(12) =240
V = (1/2)(8)(3)(12) = 144
cuboid
SA = 2(7x6) + 2(7x5) + 2(6x5) = 214
V = 7x6x5 = 210
Answer:
25 = x
Step-by-step explanation:
If the angles are congruent, they are equal
5x+15 = 6x-10
Subtract 5x from each side
5x+15 -5x = 6x-5x-10
15 = x-10
Add 10 to each side
15+10 = x-10+10
25 = x
