d. xD (Simplify your answer. Type an exact answer, using radicals as needed. Type an expression using s as the variable. Use integers or fractions for any numbers in the expression.) Equilateral triangle e.x=] and y = (Simplify your answers. Type exact answers, using radicals as needed.) 2. f.x= and y = 10 (Bimplify your answers. Type exact answers. us ng racicals as needed.) 15

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
Question
### Geometric Problem Solving with Radicals

#### Problem d:
Solve for \( x \):
\[ x = \boxed{\phantom{0}} \]
(Simplify your answer. Type an exact answer, using radicals as needed. Type an expression using \( s \) as the variable. Use integers or fractions for any numbers in the expression.)

**Diagram:** 
The diagram shows an equilateral triangle with a side length \( s \). The height \( x \) forms a right-angled triangle with \( \frac{s}{2} \) (half the base of the equilateral triangle) as one of the legs.

#### Problem e:
Solve for \( x \) and \( y \):
\[ x = \boxed{\phantom{0}}, \quad y = \boxed{\phantom{0}} \]
(Simplify your answers. Type exact answers, using radicals as needed.)

**Diagram:** 
A cube with side length 2. The diagonal inside the cube is marked as \( y \) while another line from one corner to the middle of the opposite face is marked as \( x \). 

#### Problem f:
Solve for \( x \) and \( y \):
\[ x = \boxed{\phantom{0}}, \quad y = \boxed{\phantom{0}} \]
(Simplify your answers. Type exact answers, using radicals as needed.)

**Diagram:** 
A rectangular cuboid with dimensions 7 units, 10 units, and 15 units. The internal diagonals are marked as \( x \) and \( y \). The line \( y \) is the space diagonal of the cuboid, and \( x \) is a diagonal along one of the faces formed by 10 and 7 units.

---

These problems require you to find the lengths of various diagonal lines in geometrical shapes by using properties of triangles, specifically the Pythagorean theorem, and simplifying the answers using radicals.
Transcribed Image Text:### Geometric Problem Solving with Radicals #### Problem d: Solve for \( x \): \[ x = \boxed{\phantom{0}} \] (Simplify your answer. Type an exact answer, using radicals as needed. Type an expression using \( s \) as the variable. Use integers or fractions for any numbers in the expression.) **Diagram:** The diagram shows an equilateral triangle with a side length \( s \). The height \( x \) forms a right-angled triangle with \( \frac{s}{2} \) (half the base of the equilateral triangle) as one of the legs. #### Problem e: Solve for \( x \) and \( y \): \[ x = \boxed{\phantom{0}}, \quad y = \boxed{\phantom{0}} \] (Simplify your answers. Type exact answers, using radicals as needed.) **Diagram:** A cube with side length 2. The diagonal inside the cube is marked as \( y \) while another line from one corner to the middle of the opposite face is marked as \( x \). #### Problem f: Solve for \( x \) and \( y \): \[ x = \boxed{\phantom{0}}, \quad y = \boxed{\phantom{0}} \] (Simplify your answers. Type exact answers, using radicals as needed.) **Diagram:** A rectangular cuboid with dimensions 7 units, 10 units, and 15 units. The internal diagonals are marked as \( x \) and \( y \). The line \( y \) is the space diagonal of the cuboid, and \( x \) is a diagonal along one of the faces formed by 10 and 7 units. --- These problems require you to find the lengths of various diagonal lines in geometrical shapes by using properties of triangles, specifically the Pythagorean theorem, and simplifying the answers using radicals.
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