Question

The parallel sides of a trapezium are 12cm and 16cm long. If its area is 220cm², what is its altitude?

Answer 1

Answer:

h = 15.7 cm

Step-by-step explanation:

Area of trapezium = 1/2 * h (a + b)

220 = 1/2 * h (12 + 16)

220 = 1/2 * h * 28

220 = 14h

h = 220/14

h = 15.7

Hence altitude measures 15.7 cm

Answer 2

${\underline{\underline{\huge{\mathfrak{\green{Answer:-}}}}}}$

Hey Mate!!

Let the altitude be x.

Area of trapezium = 1/2 × (Sum of Parallel Sides) × Altitude

$= > 220 = \frac{1}{2} \times (12 + 16)x \\ = > 220 = \frac{1}{2} \times 28x \\ = > 220 = 14x \\ = > x = 220 \div 14 \\ = > x = 15.71 \: cm \: (approx.)$