Question

The area of a right-angled triangle is 54 cm. The length of its base is 12 cm. Find its height.​

Answer 1

Answer:

Height is 9cm.

Step-by-step explanation:

According to the given question,

Area of a right-angled triangle=54

Base=12cm

To find the height,

Area = (a×b)÷2

Putting the values,

54=(a×12)÷2

a=(54×2)÷12

a=9cm

Hence, height is 9cm.

Answer 2

Answer:

Height of triangle is $9\ cm$ .

Step-by-step explanation:

To find : Height of triangle.

Given : area of a right-angled triangle is 54 cm and base of triangle is 12 cm.

Solution :

• As per given data we know that , area of a right-angled triangle is

       54 cm and base of triangle is 12 cm.

• Area of triangle is given by following formula by multiplying half with base and height ,  
• By substituting values in the following formula we can find height of triangle .
• Area of triangle = $\frac{1}{2} \times base \times height$

                                  $54= \frac{1}{2} \times 12 \times h \\\\54 = 6\times h \\\\ h = \frac{54}{6} \\\\h = 9\ cm$