Question
The base of a solid right prism is a triangle whose
sides are 7cm, 24cm and 25cm. the height of the prism is 5 cm then the total surface area of the prism is?Solution
As 7, 24 & 25 is satisfying Pythagoras so it is a right angle triangle. Total surface area of prism = Perimeter of base× Height + 2 × Area of base = (7 + 24 + 25) × 5 + 2 × (1/2 × 7 × 24) = 56 × 5 + 2 × 84 = 280 + 168 = 448 cm 2Â
More Mensuration Questions
45.45 × 11.67 + 14399.88 ÷ 8.01 + 124.79 = ?
(48/16)2 × 50/50 ÷ 50/800 = ? Â
- 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.)
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.)...
(1177.99 + 226.99 + 94.923) ÷ 24.97% of 59.989 = ?
1459.98 ÷ 40.48 × 12.12 = ? × 3.16
(44.85% of 639.79 + 3/8 of 480.23) × (√63.84 – 19.99% of 499.71) = ?
33.02% of (143.92 + 7 × ?) + 34.03 = 99.88
2550.03 ÷ 74.98 x 49.9 = ? + 20.32
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