Question

find the missing width in the diagram. prism a: 4 m, 7 m, 3 m. prism b: 15 m, 6 m, 13 m.

Explanation:

Step1: Analyze the horizontal lengths

The total horizontal length of the combined - shape is given as 15 m. One part of the horizontal length is 4 m and another part is 3 m.
Let the missing width be $x$.
We know that $4 + 3+x=15$.

Step2: Solve the equation for $x$

Subtract 4 and 3 from both sides of the equation:
$x = 15-(4 + 3)$.
First, calculate $4+3 = 7$. Then $x=15 - 7$.
$x = 8$ m.

Answer:

8 m