Question

the area of triangle is 90cm2.if its base is 15cm find its altitude​

Answer 1

Answer:

The area of triangle =½ ×base × height

90cm² = ½ ×15 ×h

90= 15/2 h

h= 90×2/15

h= 12cm

Hence the altitude of triangle is 12cm.

Step-by-step explanation:

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Answer 2

Answer:

12 cm .

Step-by-step explanation:

Let the altitude of triangle be  h cm

Given base of triangle b=15cm

Area of triangle is 

${90 \: cm}^{2}$

⟹

$\frac{1}{2} \times bh = 90$

As base (b) is given 15 cm .

⟹

$h = \frac{180}{15} = 12 \: cm$

So the altitude is 12 cm

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