Question

Q: THE PERPENDICULAR SIDES OF A RIGHT ANGLED TRAINGLE ARE 12 AND 15 CENTIMETERS LONG. ANOTHER RIGHT ANGLED TRAINGLE OF THE SAME AREA HAS ONE AT THE PERPENDICULAR SIDE 18 CENTIMETERS LONG . WHAT IS THE LENGTH OF THE OTHER ??

Answer 1

The other side is 5 cm

Explanation:

Find the area of the first triangle . Then make an equation for the other

Answer 2

Area of a right triangle is 1/2 x height x base

The area of the first triangle is 1/2 x 12 x 15 = 90 square cm.

The area of the other triangle is 90 and one side is 18:

90 = 1/2 x 18 x S

Multiply both sides by 2:

180 = 18 x S

Divide both sides by 18:

S = 180/18

S = 10

The length of the other side is 10 centimeters