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
(1/5)(40% of 800 – 120) = ? × 5
Determine the value of 'p' in following expression:
720 ÷ 9 + 640 ÷ 16 - p = √121 X 5 + 6²- 7(23 × 8) – (13 × 5) + 67 =? x 6         Â
Evaluate
64 ÷ 4 of 5 of [10 ÷ 5 of (9 ÷ 3 + 2)] + (9 ÷ 3 + 1)
?2 = (1035 ÷ 23) × (1080 ÷ 24)Â
- Evaluate: 156 ÷ 12 × 4 + 180 – 40% of 350
520% of 360 – 12% of 400 = ? x 4
- What will come in place of (?) in the given expression.
(⅗ of 450) – (⅖ of 300) = ? 45% of 1020 + ?% of 960 = 747
345 × 20 ÷ 4 + 28 + 60 = ?Â
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