<h2><u>Answer</u><u> </u><u>:</u></h2>
We'll be using the Pythagoras property to solve this question.
According to the Pythagoras property,
H denotes hypotenuse
B denotes base
P denotes perpendicular
Here,
→ (x)² = (35 cm)² + (12 cm)²
→ x² = 1225 cm² + 144 cm²
→ x² = 1369 cm²
→ x = √(1369 cm²)
→ x = 37 cm
<u>Therefore</u><u>,</u><u> </u><u>value</u><u> </u><u>of</u><u> </u><u>x</u><u> </u><u>is</u><u> </u><u>3</u><u>7</u><u> </u><u>cm</u><u>.</u><u> </u>