The sides of a triangle are in the ratio 3 : 4 : 5 and its perimeter is 144 cm. Find its area in cm².

Question

Accepted Answer

864. 3x + 4x + 5x = 144 gives x = 12, so the sides are 36, 48 and 60 cm. Since 36² + 48² = 1296 + 2304 = 3600 = 60², the triangle is right-angled. Area = ½ × 36 × 48 = 864 cm².

The sides of a triangle are in the ratio 3 : 4 : 5 and its perimeter is 144 cm. Find its area in $cm^{2}$ .

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More Areas & Volumes practice

The sides of a triangle are in the ratio 3 : 4 : 5 and its perimeter is 144 cm. Find its area in cm2.

Step-by-Step Solution

Master this topic in 30 minutes a day.

More Areas & Volumes practice

The sides of a triangle are in the ratio 3 : 4 : 5 and its perimeter is 144 cm. Find its area in $cm^{2}$ .