Answer:
Two planes always would intersect at a line, as shown in attached figure below.
Step-by-step explanation:
As we know that
A plane has basically 2 dimensions.
But as the plane is infinitely large, we can say that length and width of a plane is not supposed to be measured. (can not be measured)
Let suppose we have a pair of intersecting planes.
If If two intersecting planes are not parallel, then they would intersect each other somewhere.
BUT
Two planes always would intersect at a line, as shown in attached figure below.
Since these are right triangles you can use the pythagorean theorem
a² + b² = c²
a = one leg of the triangle
b = the other leg of the triangle
c = the hypotenuse
1. 4² + 3² = c²
16 + 9 = c²
25 = c²
√25 = √c²
5 = c
c = 5cm
2. 5² + 12² = c²
25 + 144 = c²
169 = c²
√169 = √c²
13 = c
c = 13in
4. 7² + 9² = c²
49 + 81 = c²
130 = c²
√130 = √c²
11.4 = c
c = 11.4cm
5. a² + 10² = 15²
a² + 100 = 225
a² = 125
√a² = √125
a = 11.2ft
D. Equivalent is the answer
Answer:
1530 cubic cm
Step-by-step explanation:
(18*4*10) + (9*9*10) = 1530