Question
The lengths of three medians in a triangles are 15 cm,
20 cm, 25 cm. What is the area of that traingle (in cm 2 )?Solution
Here s = (a+ b+ c )/2 = (15 + 20 + 25) /2 = 60/2 = 30 cm If a, b & c are medians of any triangle , then area of the triangle = 4/3 √(s(s - a)(s - b)(s - c)) = 4/3 √(60(60 - 15)(60 - 20)(60 - 25)) = 4/3 √(60 × 45 × 40 × 35) = (4/3) × 150 = 200 cm²
More Geometry Questions
35.05% of 200.05 – 20.15% of 99.99 × 3.02 = ?
- What approximate value will come in place of the question mark (?) in the following question? (Note: You are not expected to calculate the exact value.)
126.003 × 11.987 + 23.04 × 12.96 = ?
29.88% of 3599.90 + 5/12 of 2399.81 – 34.81% of 1200.18 = ?
1314.04 – 450.18 + 359.98 ÷ 12.06 = ?
(29.97%) of 9840 + ? + (45.17% of 1240) = (31.99% of 11750)
?2 - 12.5% of 647.99 = 24.98% × 363.97 + 5% of 1059.98Â
√ 27556.11  × √ 624.9  – (22.02) 2  =? × 5.95Â
41.98% of 2200.031 + 15% of 3999.9 = ?
19.86% of 145.12 1/2 × 65.12 = ? × 2.12
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